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<!DOCTYPE html><html lang="ja"><meta charset="utf-8"><title>4.9 テーブルデータ — HTML5 日本語訳</title><script src="link-fixup.js"></script>
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#base64-table * { border: none; }
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}
#named-character-references-table > table > tbody > tr > td:first-child + td,
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dl.triple dd:after { content: '\A'; white-space: pre; }
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a .diff-new { border-bottom: 1px blue solid; }
figure.diagrams { border: double black; background: white; padding: 1em; }
figure.diagrams img { display: block; margin: 1em auto; }
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{ border-bottom: solid #9999CC; }
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.category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
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p .XXX { line-height: 3em; }
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background: #F4F4FA;
content: ' ';
border-style: none none solid solid;
border-color: #9999FF;
border-width: 0.25em;
}
.example { display: block; color: #222222; background: #FCFCFC; border-left-style: solid;border-color:#c0c0c0; border-left-width: 0.25em; margin-left: 1em; padding-left: 1em;padding-bottom: 0.5em;}
div.example:before { content: 'Code Example: '; font-weight: bolder;}
td > .example:only-child { margin: 0 0 0 0.1em; }
ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
ul.domTree li li { list-style: none; }
ul.domTree li:first-child::before { position: absolute; top: 0; height: 0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
ul.domTree li:not(:last-child)::after { position: absolute; top: 0; bottom: -0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
ul.domTree span { font-style: italic; font-family: serif; }
ul.domTree .t1 code { color: purple; font-weight: bold; }
ul.domTree .t2 { font-style: normal; font-family: monospace; }
ul.domTree .t2 .name { color: black; font-weight: bold; }
ul.domTree .t2 .value { color: blue; font-weight: normal; }
ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
ul.domTree .t7 code, .domTree .t8 code { color: green; }
ul.domTree .t10 code { color: teal; }
body.dfnEnabled dfn { cursor: pointer; }
.dfnPanel {
display: inline;
position: absolute;
z-index: 10;
height: auto;
width: auto;
padding: 0.5em 0.75em;
font: small sans-serif, Droid Sans Fallback;
background: #DDDDDD;
color: black;
border: outset 0.2em;
}
.dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; }
.dfnPanel :link, .dfnPanel :visited { color: black; }
.dfnPanel p { font-weight: bolder; }
.dfnPanel * + p { margin-top: 0.25em; }
.dfnPanel li { list-style-position: inside; }
#configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
#configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
#configUI p label { display: block; }
#configUI #updateUI, #configUI .loginUI { text-align: center; }
#configUI input[type=button] { display: block; margin: auto; }
fieldset { margin: 1em; padding: 0.5em 1em; }
fieldset > legend + * { margin-top: 0; }
fieldset > :last-child { margin-bottom: 0; }
fieldset p { margin: 0.5em 0; }
header p.subline {color:#005A9C; font: 140% sans-serif;margin: 0.75em 0;}
#authorButton {overflow: visible; padding: 0.1em 0.3em; position: fixed; right: 2em; top: 6em; width: auto;}
@media print {#authorButton { display:none;}}
.stability {
position: fixed;
bottom: 0;
left: 0; right: 0;
margin: 0 auto 0 auto;
width: 50%;
background: maroon; color: yellow;
-webkit-border-radius: 1em 1em 0 0;
-moz-border-radius: 1em 1em 0 0;
border-radius: 1em 1em 0 0;
-moz-box-shadow: 0 0 1em #500;
-webkit-box-shadow: 0 0 1em #500;
box-shadow: 0 0 1em red;
padding: 0.5em 1em;
text-align: center;
}
.stability strong {
display: block;
}
.stability input {
-moz-appearance: none; -webkit-appearance: none; margin: 0;
border: 0; padding: 0.25em 0.5em; background: transparent; color: black;
position: absolute; top: -0.5em; right: 0; font: 1.25em sans-serif; text-align: center;
}
.stability input:hover {
color: white;
text-shadow: 0 0 2px black;
}
.stability input:active {
padding: 0.3em 0.45em 0.2em 0.55em;
}
.stability :link, .stability :visited,
.stability :link:hover, .stability :visited:hover {
background: transparent;
color: white;
}
</style><!-- style switcher script by Stommepoes --><link href="http://www.w3.org/StyleSheets/TR/W3C-REC" rel="stylesheet" type="text/css"><link href="switcher/author-view.css" id="author-view" rel="alternate stylesheet" title="Author documentation only"><script src="switcher/authorstylesheet.js"></script><link href="links.html" rel="prev" title="4.8 Links">
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<p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
<h1 id="big-title">HTML5日本語訳</h1>
<p class="no-num no-toc subline">HTMLとXHTMLのための語彙と関連API</p>
<h2 class="no-num no-toc" id="w3c-recommendation-28-october-2014">W3C Recommendation 28 October 2014</h2>
</header></div>
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<a href="links.html">← 4.8 リンク</a> – <a href="Overview.html#contents">目次</a> – <a href="forms.html">4.10 フォーム →</a>
<ol class="toc"><li><ol><li><a href="tabular-data.html#tabular-data"><span class="secno">4.9</span> テーブルデータ</a>
<ol><li><a href="tabular-data.html#the-table-element"><span class="secno">4.9.1</span> <code>table</code>要素</a>
<ol><li><a href="tabular-data.html#table-descriptions-techniques"><span class="secno">4.9.1.1</span> 表を記述するためのテクニック</a></li><li><a href="tabular-data.html#table-layout-techniques"><span class="secno">4.9.1.2</span> テーブルデザインのためのテクニック</a></li></ol></li><li><a href="tabular-data.html#the-caption-element"><span class="secno">4.9.2</span> <code>caption</code>要素</a></li><li><a href="tabular-data.html#the-colgroup-element"><span class="secno">4.9.3</span> <code>colgroup</code>要素</a></li><li><a href="tabular-data.html#the-col-element"><span class="secno">4.9.4</span> <code>col</code>要素</a></li><li><a href="tabular-data.html#the-tbody-element"><span class="secno">4.9.5</span> <code>tbody</code>要素</a></li><li><a href="tabular-data.html#the-thead-element"><span class="secno">4.9.6</span> <code>thead</code>要素</a></li><li><a href="tabular-data.html#the-tfoot-element"><span class="secno">4.9.7</span> <code>tfoot</code>要素</a></li><li><a href="tabular-data.html#the-tr-element"><span class="secno">4.9.8</span> <code>tr</code>要素</a></li><li><a href="tabular-data.html#the-td-element"><span class="secno">4.9.9</span> <code>td</code>要素</a></li><li><a href="tabular-data.html#the-th-element"><span class="secno">4.9.10</span> <code>th</code>要素</a></li><li><a href="tabular-data.html#attributes-common-to-td-and-th-elements"><span class="secno">4.9.11</span> <code>td</code>と<code>th</code>要素の共通属性</a></li><li><a href="tabular-data.html#processing-model-1"><span class="secno">4.9.12 </span>Processing model</a>
<ol><li><a href="tabular-data.html#forming-a-table"><span class="secno">4.9.12.1 </span>Forming a table</a></li><li><a href="tabular-data.html#header-and-data-cell-semantics"><span class="secno">4.9.12.2 </span>Forming relationships between data cells and header cells</a></li></ol></li></ol></li></ol></li></ol></nav>
<h3 id="tabular-data"><span class="secno">4.9</span> テーブルデータ</h3>
<h4 id="the-table-element"><span class="secno">4.9.1</span> <dfn><code>table</code></dfn>要素</h4>
<dl class="element"><dt><a data-anolis-xref="element-dfn-categories" href="dom.html#element-dfn-categories">カテゴリ</a>：</dt>
<dd><a href="dom.html#flow-content-1">フローコンテンツ</a>。</dd>
<dd><a href="dom.html#palpable-content-0">パルパブルコンテンツ</a>。</dd>
<dt><a data-anolis-xref="element-dfn-contexts" href="dom.html#element-dfn-contexts">この要素を使用できるコンテキスト</a>：</dt>
<dd><a href="dom.html#flow-content-1">フローコンテンツ</a>が期待される場所。</dd>
<dt><a data-anolis-xref="element-dfn-content-model" href="dom.html#element-dfn-content-model">コンテンツモデル</a>：</dt>
<dd>この順序で：任意で<code><a href="#the-caption-element">caption</a></code>要素、0個以上の<code><a href="#the-colgroup-element">colgroup</a></code>要素、任意で<code><a href="#the-thead-element">thead</a></code>要素、任意で<code><a href="#the-tfoot-element">tfoot</a></code>要素、0個以上の<code><a href="#the-tbody-element">tbody</a></code>要素または1個以上の<code><a href="#the-tr-element">tr</a></code>要素のいずれか、任意で<code><a href="#the-tfoot-element">tfoot</a></code>要素（ただし全部で1個の<code><a href="#the-tfoot-element">tfoot</a></code>要素の子のみになる場合もある）、任意で1つ以上の<a href="dom.html#script-supporting-elements-0">スクリプトサポート要素</a>と混合される。</dd>
<dt><a data-anolis-xref="element-dfn-attributes" href="dom.html#element-dfn-attributes">コンテンツ属性</a>：</dt>
<dd><a href="dom.html#global-attributes">グローバル属性</a></dd>
<dd><code data-anolis-xref="attr-table-border"><a href="#attr-table-border">border</a></code></dd>
<dd><code data-anolis-xref="attr-table-sortable">sortable</code> - テーブルに対してソートインターフェースを有効にする</dd>
<dt><span data-anolis-xref="concept-element-tag-omission">text/htmlにおけるタグ省略</span>：</dt>
<dd>どちらのタグも省略不可</dd>
<dt>許可される<a href="dom.html#aria-role-attribute">ARIAロール属性</a>値：</dt>
<dd><a href="dom.html#allowed-aria-roles,-states-and-properties">任意のrole値</a>。</dd>
<dt>許可される<a href="dom.html#state-and-property-attributes">ARIAステートおよびプロパティー</a>：</dt>
<dd><a href="dom.html#index-aria-global">グローバルaria-* 属性</a></dd>
<dd><a href="dom.html#allowed-aria-roles,-states-and-properties">許可されるロールで受け入れ可能な</a>任意の<code title="">aria-*</code>属性。</dd>
<dt><a data-anolis-xref="element-dfn-dom" href="dom.html#element-dfn-dom">DOMインターフェース</a>：</dt><!--TOPIC:DOM APIs-->
<dd>
<pre class="idl">interface <dfn id="htmltableelement">HTMLTableElement</dfn> : <a href="dom.html#htmlelement">HTMLElement</a> {
attribute <a href="#htmltablecaptionelement">HTMLTableCaptionElement</a>? <a data-anolis-xref="dom-table-caption" href="#dom-table-caption">caption</a>;
<a href="dom.html#htmlelement">HTMLElement</a> <a data-anolis-xref="dom-table-createCaption" href="#dom-table-createcaption">createCaption</a>();
void <a data-anolis-xref="dom-table-deleteCaption" href="#dom-table-deletecaption">deleteCaption</a>();
attribute <a href="#htmltablesectionelement">HTMLTableSectionElement</a>? <a data-anolis-xref="dom-table-tHead" href="#dom-table-thead">tHead</a>;
<a href="dom.html#htmlelement">HTMLElement</a> <a data-anolis-xref="dom-table-createTHead" href="#dom-table-createthead">createTHead</a>();
void <a data-anolis-xref="dom-table-deleteTHead" href="#dom-table-deletethead">deleteTHead</a>();
attribute <a href="#htmltablesectionelement">HTMLTableSectionElement</a>? <a data-anolis-xref="dom-table-tFoot" href="#dom-table-tfoot">tFoot</a>;
<a href="dom.html#htmlelement">HTMLElement</a> <a data-anolis-xref="dom-table-createTFoot" href="#dom-table-createtfoot">createTFoot</a>();
void <a data-anolis-xref="dom-table-deleteTFoot" href="#dom-table-deletetfoot">deleteTFoot</a>();
readonly attribute <a href="infrastructure.html#htmlcollection">HTMLCollection</a> <a data-anolis-xref="dom-table-tBodies" href="#dom-table-tbodies">tBodies</a>;
<a href="dom.html#htmlelement">HTMLElement</a> <a data-anolis-xref="dom-table-createTBody" href="#dom-table-createtbody">createTBody</a>();
readonly attribute <a href="infrastructure.html#htmlcollection">HTMLCollection</a> <a data-anolis-xref="dom-table-rows" href="#dom-table-rows">rows</a>;
<a href="dom.html#htmlelement">HTMLElement</a> <a data-anolis-xref="dom-table-insertRow" href="#dom-table-insertrow">insertRow</a>(optional long index = -1);
void <a data-anolis-xref="dom-table-deleteRow" href="#dom-table-deleterow">deleteRow</a>(long index);
attribute DOMString <a data-anolis-xref="dom-table-border" href="obsolete.html#dom-table-border-0">border</a>;
};</pre>
</dd>
</dl><!--TOPIC:HTML--><p><code><a href="#the-table-element">table</a></code>要素は<a data-anolis-xref="concept-table" href="#concept-table">テーブル</a>形式で、複数の寸法を持つデータを<a href="dom.html#represents">表す</a>。</p>
<p><span class="impl">The <code><a href="#the-table-element">table</a></code> element takes part in the <a href="#table-model">table
model</a>.</span> テーブルは、行、列、およびその子孫によって与えられるセルを持つ。行と列はグリッドを形成する。テーブルのセルは完全に重複することなく、グリッドをカバーしなければならない。</p>
<div class="impl">
<p class="note">Precise rules for determining whether this conformance requirement is met are
described in the description of the <a href="#table-model">table model</a>.</p>
</div>
<p>著者は、複雑なテーブルをどのように解釈するかを記述する情報を提供するよう推奨される。<a href="#table-descriptions-techniques">そのような情報を提供する</a>方法についての手引きは後述のとおりである。</p>
<p>テーブルは、レイアウトの補助として使用されるべきでない。歴史的に、多くのウェブ著者は、文書からテーブルデータを抽出することが難しい、ページのレイアウトを制御する方法としてのHTMLにおけるテーブルを持つ。特にスクリーンリーダーのような、アクセシビリティツールのユーザーは、レイアウトのために使用されたテーブルをもつページをナビゲートするためにテーブルデータを見つけることが非常に難しい可能性がある。テーブルをレイアウトに使用する場合、ユーザーエージェントに対して支援技術へテーブルを適切に表現するために、および文書からのテーブルデータの抽出を望むツールへ著者の意図を適切に伝えるために、属性role="presentation"でマークしなければならない。</p>
<p class="note">主にCSS位置決めとCSSテーブルモデルを用いて、レイアウトに対してHTMLのテーブルの代わりに使用できる、さまざまな代替手段がある。<a href="references.html#refsCSS">[CSS]</a></p>
<p><dfn data-anolis-xref="attr-table-border" id="attr-table-border"><code>border</code></dfn>属性は、<code><a href="#the-table-element">table</a></code>が要素レイアウト目的で使用されていないことを明示的に示すために<code><a href="#the-table-element">table</a></code>要素で指定されてもよい。指定された場合、属性の値は空文字列または値を"<code data-anolis-xref="">1</code>"のいずれかにしなければならない。属性は、ボーダーがテーブルのセルの周囲に描画されるべきであることを示すものとして、特定のユーザーエージェントによって使用される。</p><!--!--><!-- http://lists.w3.org/Archives/Public/public-html/2011Apr/0419.html -->
<div class="impl">
<hr><p>Tables can be complicated to understand and navigate. To help
users with this, user agents should clearly delineate cells in a
table from each other, unless the user agent has classified the
table as a
layout table.</p>
</div>
<p class="note"> <span class="impl">and implementors</span>
著者は、ユーザーに対してテーブルをより簡単に移動するために、下記の<a href="#table-layout-techniques">テーブルデザインテクニック</a>の使用を検討することを推奨する。</p>
<div class="impl">
<p>User agents, especially those that do table analysis on arbitrary
content, are encouraged to find heuristics to determine which tables
actually contain data and which are merely being used for layout.
This specification does not define a precise heuristic, but the
following are suggested as possible indicators:</p>
<table><thead><tr><th>Feature
</th><th>Indication
<tbody></th></tr><tr><td>The use of the <code data-anolis-xref="attr-aria-role"><a href="infrastructure.html#attr-aria-role">role</a></code> attribute with the value <code title="">presentation</code>
</td><td>Probably a layout table
</td></tr><tr><td>The use of the <code data-anolis-xref="attr-table-border"><a href="#attr-table-border">border</a></code> attribute with the non-conforming value 0
</td><td>Probably a layout table
</td></tr><tr><td>The use of the non-conforming <code data-anolis-xref="attr-table-cellspacing"><a href="obsolete.html#attr-table-cellspacing">cellspacing</a></code> and <code data-anolis-xref="attr-table-cellpadding"><a href="obsolete.html#attr-table-cellpadding">cellpadding</a></code> attributes with the value 0
</td><td>Probably a layout table
<tbody></td></tr><tr><td>The use of <code><a href="#the-caption-element">caption</a></code>, <code><a href="#the-thead-element">thead</a></code>, or <code><a href="#the-th-element">th</a></code> elements
</td><td>Probably a non-layout table
</td></tr><tr><td>The use of the <code data-anolis-xref="attr-tdth-headers"><a href="#attr-tdth-headers">headers</a></code> and <code data-anolis-xref="attr-th-scope"><a href="#attr-th-scope">scope</a></code> attributes
</td><td>Probably a non-layout table
</td></tr><tr><td>The use of the <code data-anolis-xref="attr-table-border"><a href="#attr-table-border">border</a></code> attribute with a value other than 0
</td><td>Probably a non-layout table
</td></tr><tr><td>Explicit visible borders set using CSS
</td><td>Probably a non-layout table
<tbody></td></tr><tr><td>The use of the <code data-anolis-xref="attr-table-summary"><a href="obsolete.html#attr-table-summary">summary</a></code> attribute
</td><td>Not a good indicator (both layout and non-layout tables have historically been given this attribute)
</td></tr></table><p class="note">It is quite possible that the above suggestions are
wrong. Implementors are urged to provide feedback elaborating on
their experiences with trying to create a layout table detection
heuristic.</p>
</div>
<hr><!--TOPIC:DOM APIs--><dl class="domintro"><dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-caption"><a href="#dom-table-caption">caption</a></code> [ = <var data-anolis-xref="">value</var> ]</dt>
<dd>
<p>テーブルの<code><a href="#the-caption-element">caption</a></code>要素を返す。</p>
<p><code><a href="#the-caption-element">caption</a></code>要素を置き換えるために、設定が可能である。新しい値が<code><a href="#the-caption-element">caption</a></code>要素でない場合、<code><a href="infrastructure.html#hierarchyrequesterror">HierarchyRequestError</a></code>例外を投げる。</p>
</dd>
<dt><var data-anolis-xref="">caption</var> = <var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-createCaption"><a href="#dom-table-createcaption">createCaption</a></code>()</dt>
<dd>
<p>表が<code><a href="#the-caption-element">caption</a></code>要素を持つことを保証し、それを返す。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-deleteCaption"><a href="#dom-table-deletecaption">deleteCaption</a></code>()</dt>
<dd>
<p>表が<code><a href="#the-caption-element">caption</a></code>要素を持たないことを保証する。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-tHead"><a href="#dom-table-thead">tHead</a></code> [ = <var data-anolis-xref="">value</var> ]</dt>
<dd>
<p>テーブルの<code><a href="#the-thead-element">thead</a></code>要素を返す。</p>
<p><code><a href="#the-thead-element">thead</a></code>要素を置き換えるために、設定が可能である。新しい値が<code><a href="#the-thead-element">thead</a></code>要素でない場合、<code><a href="infrastructure.html#hierarchyrequesterror">HierarchyRequestError</a></code>例外を投げる。</p>
</dd>
<dt><var data-anolis-xref="">thead</var> = <var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-createTHead"><a href="#dom-table-createthead">createTHead</a></code>()</dt>
<dd>
<p>表が<code><a href="#the-thead-element">thead</a></code>要素を持つことを保証し、それを返す。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-deleteTHead"><a href="#dom-table-deletethead">deleteTHead</a></code>()</dt>
<dd>
<p>表が<code><a href="#the-thead-element">thead</a></code>要素を持たないことを保証する。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-tFoot"><a href="#dom-table-tfoot">tFoot</a></code> [ = <var data-anolis-xref="">value</var> ]</dt>
<dd>
<p>テーブルの<code><a href="#the-tfoot-element">tfoot</a></code>要素を返す。</p>
<p><code><a href="#the-tfoot-element">tfoot</a></code>要素を置き換えるために、設定が可能である。新しい値が<code><a href="#the-tfoot-element">tfoot</a></code>要素でない場合、<code><a href="infrastructure.html#hierarchyrequesterror">HierarchyRequestError</a></code>例外を投げる。</p>
</dd>
<dt><var data-anolis-xref="">tfoot</var> = <var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-createTFoot"><a href="#dom-table-createtfoot">createTFoot</a></code>()</dt>
<dd>
<p>表が<code><a href="#the-tfoot-element">tfoot</a></code>要素を持つことを保証し、それを返す。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-deleteTFoot"><a href="#dom-table-deletetfoot">deleteTFoot</a></code>()</dt>
<dd>
<p>表が<code><a href="#the-tfoot-element">tfoot</a></code>要素を持たないことを保証する。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-tBodies"><a href="#dom-table-tbodies">tBodies</a></code></dt>
<dd>
<p>テーブルの<code><a href="#the-tbody-element">tbody</a></code>要素の<code><a href="infrastructure.html#htmlcollection">HTMLCollection</a></code>を返す。</p>
</dd>
<dt><var data-anolis-xref="">tbody</var> = <var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-createTBody"><a href="#dom-table-createtbody">createTBody</a></code>()</dt>
<dd>
<p><code><a href="#the-tbody-element">tbody</a></code>要素を作成してテーブルに挿入し、それを返す。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code></dt>
<dd>
<p>テーブルの<code><a href="#the-tr-element">tr</a></code>要素の<code><a href="infrastructure.html#htmlcollection">HTMLCollection</a></code>を返す。</p>
</dd>
<dt><var data-anolis-xref="">tr</var> = <var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-insertRow"><a href="#dom-table-insertrow">insertRow</a></code>( [ <var data-anolis-xref="">index</var> ] )</dt>
<dd>
<p>必要であれば、<code><a href="#the-tbody-element">tbody</a></code>要素とともに、<code><a href="#the-tr-element">tr</a></code>要素を作成し、引数で指定された位置にあるテーブルへそれらを挿入して、<code><a href="#the-tr-element">tr</a></code>を返す。</p>
<p>位置は、テーブルの行を基準にする。引数が省略されている場合、デフォルトでインデックス-1は、テーブルの末尾に挿入することと同じである。</p>
<p>指定された位置が-1未満または行数より大きい場合、<code><a href="infrastructure.html#indexsizeerror">IndexSizeError</a></code>例外を投げる。</p>
</dd>
<dt><var data-anolis-xref="">table</var> . <code data-anolis-xref="dom-table-deleteRow"><a href="#dom-table-deleterow">deleteRow</a></code>(<var data-anolis-xref="">index</var>)</dt>
<dd>
<p>テーブルで指定された位置とともに<code><a href="#the-tr-element">tr</a></code>要素を削除する。</p>
<p>位置は、テーブルの行を基準にする。インデックス-1は、テーブルの最後の行を削除するのと同じである。</p>
<p>指定された位置が-1未満または最終行のインデックスよりも大きい、または行が存在しない場合、<code><a href="infrastructure.html#indexsizeerror">IndexSizeError</a></code>例外を投げる。</p>
</dd>
</dl><div class="impl">
<p>The <dfn data-anolis-xref="dom-table-caption" id="dom-table-caption"><code>caption</code></dfn> IDL attribute must return, on
getting, the first <code><a href="#the-caption-element">caption</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any,
or null otherwise. On setting, if the new value is a <code><a href="#the-caption-element">caption</a></code> element, the first
<code><a href="#the-caption-element">caption</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any, must be removed, and
the new value must be inserted as the first node of the <code><a href="#the-table-element">table</a></code> element. If the new
value is not a <code><a href="#the-caption-element">caption</a></code> element, then a <code><a href="infrastructure.html#hierarchyrequesterror">HierarchyRequestError</a></code> DOM
exception must be thrown instead.</p>
<p>The <dfn data-anolis-xref="dom-table-createCaption" id="dom-table-createcaption"><code>createCaption()</code></dfn> method must return
the first <code><a href="#the-caption-element">caption</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any; otherwise
a new <code><a href="#the-caption-element">caption</a></code> element must be created, inserted as the first node of the
<code><a href="#the-table-element">table</a></code> element, and then returned.</p>
<p>The <dfn data-anolis-xref="dom-table-deleteCaption" id="dom-table-deletecaption"><code>deleteCaption()</code></dfn> method must remove
the first <code><a href="#the-caption-element">caption</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any.</p>
<p>The <dfn data-anolis-xref="dom-table-tHead" id="dom-table-thead"><code>tHead</code></dfn> IDL attribute must return, on
getting, the first <code><a href="#the-thead-element">thead</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any, or
null otherwise. On setting, if the new value is a <code><a href="#the-thead-element">thead</a></code> element, the first
<code><a href="#the-thead-element">thead</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any, must be removed, and
the new value must be inserted immediately before the first element in the <code><a href="#the-table-element">table</a></code>
element that is neither a <code><a href="#the-caption-element">caption</a></code> element nor a <code><a href="#the-colgroup-element">colgroup</a></code> element, if
any, or at the end of the table if there are no such elements. If the new value is not a
<code><a href="#the-thead-element">thead</a></code> element, then a <code><a href="infrastructure.html#hierarchyrequesterror">HierarchyRequestError</a></code> DOM exception must be thrown
instead.</p>
<p>The <dfn data-anolis-xref="dom-table-createTHead" id="dom-table-createthead"><code>createTHead()</code></dfn> method must return the
first <code><a href="#the-thead-element">thead</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any; otherwise a new
<code><a href="#the-thead-element">thead</a></code> element must be created and inserted immediately before the first element in
the <code><a href="#the-table-element">table</a></code> element that is neither a <code><a href="#the-caption-element">caption</a></code> element nor a
<code><a href="#the-colgroup-element">colgroup</a></code> element, if any, or at the end of the table if there are no such elements,
and then that new element must be returned.</p>
<p>The <dfn data-anolis-xref="dom-table-deleteTHead" id="dom-table-deletethead"><code>deleteTHead()</code></dfn> method must remove the
first <code><a href="#the-thead-element">thead</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any.</p>
<p>The <dfn data-anolis-xref="dom-table-tFoot" id="dom-table-tfoot"><code>tFoot</code></dfn> IDL attribute must return, on
getting, the first <code><a href="#the-tfoot-element">tfoot</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any, or
null otherwise. On setting, if the new value is a <code><a href="#the-tfoot-element">tfoot</a></code> element, the first
<code><a href="#the-tfoot-element">tfoot</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any, must be removed, and
the new value must be inserted immediately before the first element in the <code><a href="#the-table-element">table</a></code>
element that is neither a <code><a href="#the-caption-element">caption</a></code> element, a <code><a href="#the-colgroup-element">colgroup</a></code> element, nor a
<code><a href="#the-thead-element">thead</a></code> element, if any, or at the end of the table if there are no such elements. If
the new value is not a <code><a href="#the-tfoot-element">tfoot</a></code> element, then a <code><a href="infrastructure.html#hierarchyrequesterror">HierarchyRequestError</a></code> DOM
exception must be thrown instead.</p>
<p>The <dfn data-anolis-xref="dom-table-createTFoot" id="dom-table-createtfoot"><code>createTFoot()</code></dfn> method must return the
first <code><a href="#the-tfoot-element">tfoot</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any; otherwise a new
<code><a href="#the-tfoot-element">tfoot</a></code> element must be created and inserted immediately before the first element in
the <code><a href="#the-table-element">table</a></code> element that is neither a <code><a href="#the-caption-element">caption</a></code> element, a
<code><a href="#the-colgroup-element">colgroup</a></code> element, nor a <code><a href="#the-thead-element">thead</a></code> element, if any, or at the end of the
table if there are no such elements, and then that new element must be returned.</p>
<p>The <dfn data-anolis-xref="dom-table-deleteTFoot" id="dom-table-deletetfoot"><code>deleteTFoot()</code></dfn> method must remove the
first <code><a href="#the-tfoot-element">tfoot</a></code> element child of the <code><a href="#the-table-element">table</a></code> element, if any.</p>
<p>The <dfn data-anolis-xref="dom-table-tBodies" id="dom-table-tbodies"><code>tBodies</code></dfn> attribute must return an
<code><a href="infrastructure.html#htmlcollection">HTMLCollection</a></code> rooted at the <code><a href="#the-table-element">table</a></code> node, whose filter matches only
<code><a href="#the-tbody-element">tbody</a></code> elements that are children of the <code><a href="#the-table-element">table</a></code> element.</p>
<p>The <dfn data-anolis-xref="dom-table-createTBody" id="dom-table-createtbody"><code>createTBody()</code></dfn> method must create a
new <code><a href="#the-tbody-element">tbody</a></code> element, insert it immediately after the last <code><a href="#the-tbody-element">tbody</a></code> element
child in the <code><a href="#the-table-element">table</a></code> element, if any, or at the end of the <code><a href="#the-table-element">table</a></code> element
if the <code><a href="#the-table-element">table</a></code> element has no <code><a href="#the-tbody-element">tbody</a></code> element children, and then must return
the new <code><a href="#the-tbody-element">tbody</a></code> element.</p>
<p>The <dfn data-anolis-xref="dom-table-rows" id="dom-table-rows"><code>rows</code></dfn> attribute must return an
<code><a href="infrastructure.html#htmlcollection">HTMLCollection</a></code> rooted at the <code><a href="#the-table-element">table</a></code> node, whose filter matches only
<code><a href="#the-tr-element">tr</a></code> elements that are either children of the <code><a href="#the-table-element">table</a></code> element, or children
of <code><a href="#the-thead-element">thead</a></code>, <code><a href="#the-tbody-element">tbody</a></code>, or <code><a href="#the-tfoot-element">tfoot</a></code> elements that are themselves
children of the <code><a href="#the-table-element">table</a></code> element. The elements in the collection must be ordered such
that those elements whose parent is a <code><a href="#the-thead-element">thead</a></code> are included first, in tree order,
followed by those elements whose parent is either a <code><a href="#the-table-element">table</a></code> or <code><a href="#the-tbody-element">tbody</a></code>
element, again in tree order, followed finally by those elements whose parent is a
<code><a href="#the-tfoot-element">tfoot</a></code> element, still in tree order.</p>
<p>The behavior of the <dfn data-anolis-xref="dom-table-insertRow" id="dom-table-insertrow"><code>insertRow(<var data-anolis-xref="">index</var>)</code></dfn> method depends on the state of the table. When it is called,
the method must act as required by the first item in the following list of conditions that
describes the state of the table and the <var data-anolis-xref="">index</var> argument:</p>
<dl class="switch"><dt>If <var data-anolis-xref="">index</var> is less than −1 or greater than the number of elements in
<code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection:</dt>
<dd>The method must throw an <code><a href="infrastructure.html#indexsizeerror">IndexSizeError</a></code> exception.</dd>
<dt>If the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection has zero elements in it, and the
<code><a href="#the-table-element">table</a></code> has no <code><a href="#the-tbody-element">tbody</a></code> elements in it:</dt>
<dd>The method must create a <code><a href="#the-tbody-element">tbody</a></code> element, then create a <code><a href="#the-tr-element">tr</a></code> element,
then append the <code><a href="#the-tr-element">tr</a></code> element to the <code><a href="#the-tbody-element">tbody</a></code> element, then append the
<code><a href="#the-tbody-element">tbody</a></code> element to the <code><a href="#the-table-element">table</a></code> element, and finally return the
<code><a href="#the-tr-element">tr</a></code> element.</dd>
<dt>If the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection has zero elements in it:</dt>
<dd>The method must create a <code><a href="#the-tr-element">tr</a></code> element, append it to the last <code><a href="#the-tbody-element">tbody</a></code>
element in the table, and return the <code><a href="#the-tr-element">tr</a></code> element.</dd>
<dt>If <var data-anolis-xref="">index</var> is −1 or equal to the number of items in <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection:</dt>
<dd>The method must create a <code><a href="#the-tr-element">tr</a></code> element, and append it to the parent of the last
<code><a href="#the-tr-element">tr</a></code> element in the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection. Then, the
newly created <code><a href="#the-tr-element">tr</a></code> element must be returned.</dd>
<dt>Otherwise:</dt>
<dd>The method must create a <code><a href="#the-tr-element">tr</a></code> element, insert it immediately before the <var data-anolis-xref="">index</var>th <code><a href="#the-tr-element">tr</a></code> element in the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code>
collection, in the same parent, and finally must return the newly created <code><a href="#the-tr-element">tr</a></code>
element.</dd>
</dl><p>When the <dfn data-anolis-xref="dom-table-deleteRow" id="dom-table-deleterow"><code>deleteRow(<var data-anolis-xref="">index</var>)</code></dfn> method is called, the user agent must run the following
steps:</p>
<ol><li><p>If <var data-anolis-xref="">index</var> is equal to −1, then <var data-anolis-xref="">index</var> must be
set to the number of items in the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection, minus
one.</li>
<li><p>Now, if <var data-anolis-xref="">index</var> is less than zero, or greater than or equal to the
number of elements in the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection, the method must
instead throw an <code><a href="infrastructure.html#indexsizeerror">IndexSizeError</a></code> exception, and these steps must be aborted.</li>
<li><p>Otherwise, the method must remove the <var data-anolis-xref="">index</var>th element in the <code data-anolis-xref="dom-table-rows"><a href="#dom-table-rows">rows</a></code> collection from its parent.</p>
</li></ol><p>The <dfn data-anolis-xref="dom-table-border" id="dom-table-border"><code>border</code></dfn> IDL
attribute must <a href="infrastructure.html#reflect">reflect</a> the content attribute of the
same name.</p>
</div><!--TOPIC:HTML-->
<div class="example">
<p>これは、数独パズルをマークアップするために使用されているテーブルの例である。そのようなテーブルで必要のない、ヘッダーの欠如を観察する。</p>
<pre><section>
<style>
table { border-collapse: collapse; border: solid thick; }
colgroup, tbody { border: solid medium; }
td { border: solid thin; height: 1.4em; width: 1.4em; text-align: center; padding: 0; }
</style>
<h1>Today's Sudoku</h1>
<table>
<colgroup><col><col><col>
<colgroup><col><col><col>
<colgroup><col><col><col>
<tbody>
<tr> <td> 1 <td> <td> 3 <td> 6 <td> <td> 4 <td> 7 <td> <td> 9
<tr> <td> <td> 2 <td> <td> <td> 9 <td> <td> <td> 1 <td>
<tr> <td> 7 <td> <td> <td> <td> <td> <td> <td> <td> 6
<tbody>
<tr> <td> 2 <td> <td> 4 <td> <td> 3 <td> <td> 9 <td> <td> 8
<tr> <td> <td> <td> <td> <td> <td> <td> <td> <td>
<tr> <td> 5 <td> <td> <td> 9 <td> <td> 7 <td> <td> <td> 1
<tbody>
<tr> <td> 6 <td> <td> <td> <td> 5 <td> <td> <td> <td> 2
<tr> <td> <td> <td> <td> <td> 7 <td> <td> <td> <td>
<tr> <td> 9 <td> <td> <td> 8 <td> <td> 2 <td> <td> <td> 5
</table>
</section></pre>
</div>
<h5 id="table-descriptions-techniques"><span class="secno">4.9.1.1</span> 表を記述するためのテクニック</h5>
<p class="auth" id="table-descriptions">1行目のヘッダーと1列目のヘッダーをもつセルの1つ以上のグリッドからなるテーブルに対して、および一般に読者がコンテンツを理解する難しさがあるかもしれない場所で任意のテーブルに対して、著者はテーブルを導入する説明情報を含めるべきである。この情報はすべてのユーザーに対して有用であるが、たとえばスクリーンリーダーのユーザーなど、テーブルを見ることができないユーザーに対して特に有用である。</p>
<p>そのような説明情報は、テーブルの目的を紹介し、その基本的なセル構造を要約し、傾向やパターンを強調し、および一般にどのようにテーブルを使用するかをユーザーに教えるべきである。</p><!-- Describing the conclusions of the data in a table is useful to everyone; explaining how to
read the table, if not obvious from the headers alone, is useful to everyone; describing the
structure of the table, if it is easy to grasp visually, might not be useful to everyone, but it
might also not be useful to users who can quickly navigate the table with an accessibility tool.
-->
<p>たとえば、次の表において：</p>
<table><caption>Characteristics with positive and negative sides</caption>
<thead><tr><th id="n"> Negative
</th><th> Characteristic
</th><th> Positive
<tbody></th></tr><tr><td headers="n r1"> Sad
<th id="r1"> Mood
<td> Happy
</td></th></td></tr><tr><td headers="n r2"> Failing
<th id="r2"> Grade
<td> Passing
</td></th></td></tr></table><p>"左側の列の否定的な側面および右側の列に肯定的な側面とともに、特性は2列目に示されている"のような何かを、表がレイアウトする方法を示す説明が恩恵を受けるかもしれない。</p>
<p>この情報を含めるためのさまざまな方法がある：</p>
<dl><dt>文において、テーブルを囲んで</dt>
<dd>
<div class="example"><pre><p id="summary">In the following table, characteristics are
given in the second column, with the negative side in the left column and the positive
side in the right column.</p>
<table aria-describedby="summary">
<caption>Characteristics with positive and negative sides</caption>
<thead>
<tr>
<th id="n"> Negative
<th> Characteristic
<th> Positive
<tbody>
<tr>
<td headers="n r1"> Sad
<th id="r1"> Mood
<td> Happy
<tr>
<td headers="n r2"> Failing
<th id="r2"> Grade
<td> Passing
</table></pre></div>
<p class="note">上記の例における<a href="http://www.w3.org/TR/wai-aria/states_and_properties#aria-describedby"><code data-anolis-xref="attr-aria-*">aria-describedby</code></a>属性は、明示的に支援技術ユーザーに対してテーブルに情報を関連付けるために使用される。</p>
</dd>
<dt>テーブルの<code><a href="#the-caption-element">caption</a></code>で</dt>
<dd>
<div class="example"><pre><table>
<caption>
<strong>Characteristics with positive and negative sides.</strong>
<p>Characteristics are given in the second column, with the
negative side in the left column and the positive side in the right
column.</p>
</caption>
<thead>
<tr>
<th id="n"> Negative
<th> Characteristic
<th> Positive
<tbody>
<tr>
<td headers="n r1"> Sad
<th id="r1"> Mood
<td> Happy
<tr>
<td headers="n r2"> Failing
<th id="r2"> Grade
<td> Passing
</table></pre></div>
</dd>
<dt>テーブルの横に、同じ<code><a href="grouping-content.html#the-figure-element">figure</a></code>で</dt>
<dd>
<div class="example"><pre><figure>
<figcaption>Characteristics with positive and negative sides</figcaption>
<p>Characteristics are given in the second column, with the
negative side in the left column and the positive side in the right
column.</p>
<table>
<thead>
<tr>
<th id="n"> Negative
<th> Characteristic
<th> Positive
<tbody>
<tr>
<td headers="n r1"> Sad
<th id="r1"> Mood
<td> Happy
<tr>
<td headers="n r2"> Failing
<th id="r2"> Grade
<td> Passing
</table>
</figure></pre></div>
</dd>
<dt>テーブルの横に、<code><a href="grouping-content.html#the-figure-element">figure</a></code>の<code><a href="grouping-content.html#the-figcaption-element">figcaption</a></code>で</dt>
<dd>
<div class="example"><pre><figure>
<figcaption>
<strong>Characteristics with positive and negative sides</strong>
<p>Characteristics are given in the second column, with the
negative side in the left column and the positive side in the right
column.</p>
</figcaption>
<table>
<thead>
<tr>
<th id="n"> Negative
<th> Characteristic
<th> Positive
<tbody>
<tr>
<td headers="n r1"> Sad
<th id="r1"> Mood
<td> Happy
<tr>
<td headers="n r2"> Failing
<th id="r2"> Grade
<td> Passing
</table>
</figure></pre></div>
</dd>
</dl><p class="auth">必要に応じて著者はまた、他の技術または上記の技術の組み合わせを使用してもよい。</p>
<p>もちろん、最良の選択肢は、テーブルがレイアウトされる理由を説明する記述を書くことよりもむしろ、一切の説明を必要としないようにテーブルを調整することである。</p>
<div class="example">
<p>上記の例で使用されるテーブルの場合、ヘッダーが上と左側に来るように、テーブルの単純な再配置は、<code data-anolis-xref="attr-tdth-headers"><a href="#attr-tdth-headers">headers</a></code>属性の使用の要求を削除するだけでなく、説明の要求を削除する。</p>
<pre><table>
<caption>Characteristics with positive and negative sides</caption>
<thead>
<tr>
<th> Characteristic
<th> Negative
<th> Positive
<tbody>
<tr>
<th> Mood
<td> Sad
<td> Happy
<tr>
<th> Grade
<td> Failing
<td> Passing
</table></pre>
</div>
<h5 id="table-layout-techniques"><span class="secno">4.9.1.2</span> テーブルデザインのためのテクニック</h5>
<p>良いテーブルデザインは、テーブルがより読みやすく、使いやすくするための鍵となる。</p>
<p>視覚メディアにおいて、列と行の境界を提供して行の背景を交互にすることは、複雑なテーブルをより読みやすくするために非常に効果的である。</p>
<p>大量のコンテンツを持つテーブルに対して、特に、ユーザーエージェントがボーダーをレンダリングしない状況において等幅フォントを使用することは、ユーザーにパターンに気づくのを助けることができる。（残念ながら、歴史的な理由により、テーブルのボーダーをレンダリングしないことは、共通のデフォルトである。）</p>
<p>音声メディアにおいて、テーブルのセルは、セルの内容を読む前に対応するヘッダーを報告することによって、およびソースの順序でテーブルの内容全体をシリアライズするのではなく、むしろグリッド方式でテーブルをナビゲートできるようにすることで区別できる。</p>
<p>著者は、これらの効果を達成するためにCSSを使用するよう推奨される。</p>
<div class="impl">
<p>User agents are encouraged to render tables using these techniques whenever the page does not
use CSS and the table is not classified as a layout table.</p>
</div>
<h4 id="the-caption-element"><span class="secno">4.9.2</span> <dfn><code>caption</code></dfn>要素</h4>
<dl class="element"><dt><a data-anolis-xref="element-dfn-categories" href="dom.html#element-dfn-categories">カテゴリ</a>：</dt>
<dd>なし。</dd>
<dt><a data-anolis-xref="element-dfn-contexts" href="dom.html#element-dfn-contexts">この要素を使用できるコンテキスト</a>：</dt>
<dd><code><a href="#the-table-element">table</a></code>要素の最初の子として。</dd>
<dt><a data-anolis-xref="element-dfn-content-model" href="dom.html#element-dfn-content-model">コンテンツモデル</a>：</dt>
<dd><a href="dom.html#flow-content-1">フローコンテンツ</a>、ただし<code><a href="#the-table-element">table</a></code>要素の子孫を除く。</dd>
<dt><a data-anolis-xref="element-dfn-attributes" href="dom.html#element-dfn-attributes">コンテンツ属性</a>：</dt>
<dd><a href="dom.html#global-attributes">グローバル属性</a></dd>
<dt><span data-anolis-xref="concept-element-tag-omission">text/htmlにおけるタグ省略</span>：</dt>
<dd>どちらのタグも省略不可</dd>
<dt>許可される<a href="dom.html#aria-role-attribute">ARIAロール属性</a>値：</dt>
<dd><a href="dom.html#allowed-aria-roles,-states-and-properties">任意のrole値</a>。</dd>
<dt>許可される<a href="dom.html#state-and-property-attributes">ARIAステートおよびプロパティー</a>：</dt>
<dd><a href="dom.html#index-aria-global">グローバルaria-* 属性</a></dd>
<dd><a href="dom.html#allowed-aria-roles,-states-and-properties">許可されるロールで受け入れ可能な</a>任意の<code title="">aria-*</code>属性。</dd>
<dt><a data-anolis-xref="element-dfn-dom" href="dom.html#element-dfn-dom">DOMインターフェース</a>：</dt><!--TOPIC:DOM APIs-->
<dd>
<pre class="idl">interface <dfn id="htmltablecaptionelement">HTMLTableCaptionElement</dfn> : <a href="dom.html#htmlelement">HTMLElement</a> {};</pre>
</dd>
</dl><!--TOPIC:HTML--><p>要素が親を持ち、それが<code><a href="#the-table-element">table</a></code>要素である場合は<code><a href="#the-caption-element">caption</a></code>要素は、その親である<code><a href="#the-table-element">table</a></code>のタイトルを<a href="dom.html#represents">表す</a>。</p>
<div class="impl">
<p>The <code><a href="#the-caption-element">caption</a></code> element takes part in the <a href="#table-model">table model</a>.</p>
</div>
<p><code><a href="#the-table-element">table</a></code>要素が<code><a href="grouping-content.html#the-figcaption-element">figcaption</a></code>以外の<code><a href="grouping-content.html#the-figure-element">figure</a></code>要素でコンテンツのみである場合、<code><a href="#the-caption-element">caption</a></code>要素は<code><a href="grouping-content.html#the-figcaption-element">figcaption</a></code>を選んで省略されるべきである。</p>
<p>理解するのがより容易になるような、キャプションはテーブルに対するコンテキストを導入できる。</p>
<div class="example">
<p>たとえば、次のテーブルを考えてみる：</p>
<table class="dice-example"><tr><th> </th><th> 1 </th><th> 2 </th><th> 3 </th><th> 4 </th><th> 5 </th><th> 6
</th></tr><tr><th> 1 <td> 2 </td><td> 3 </td><td> 4 </td><td> 5 </td><td> 6 </td><td> 7
</td></th></tr><tr><th> 2 <td> 3 </td><td> 4 </td><td> 5 </td><td> 6 </td><td> 7 </td><td> 8
</td></th></tr><tr><th> 3 <td> 4 </td><td> 5 </td><td> 6 </td><td> 7 </td><td> 8 </td><td> 9
</td></th></tr><tr><th> 4 <td> 5 </td><td> 6 </td><td> 7 </td><td> 8 </td><td> 9 </td><td> 10
</td></th></tr><tr><th> 5 <td> 6 </td><td> 7 </td><td> 8 </td><td> 9 </td><td> 10 </td><td> 11