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nobr要素

1.仕様

NOBR要素は、
改行禁止を表します。

NOBR - - (%Phrasing)* -- nobr. (Normal elements.) [Flow|Phrasing|Palpable] --

nobr

改行禁止 (nobr.)

標準には採用されていない要素です。

種類

通常要素

カテゴリ

使用できるコンテキスト
フレージングコンテンツを受け入れる要素

フレージングコンテンツを受け入れる要素のコンテンツとして、使用できます。

フレージングコンテンツを受け入れる要素は、<h1>要素, <h2>要素, <h3>要素, <h4>要素, <h5>要素, <h6>要素, <p>要素, <pre>要素, <output>要素, <progress>要素, <meter>要素, <label>要素, <datalist>要素, <body>要素, <section>要素, <nav>要素, <aside>要素, <article>要素, <header>要素, <footer>要素, <main>要素, <address>要素, <li>要素, <dt>要素, <dd>要素, <caption>要素, <th>要素, <td>要素, <form>要素, <fieldset>要素, <search>要素, <blockquote>要素, <figure>要素, <figcaption>要素, <div>要素, <dialog>要素, <abbr>要素, <b>要素, <bdi>要素, <bdo>要素, <cite>要素, <code>要素, <data>要素, <dfn>要素, <em>要素, <i>要素, <kbd>要素, <mark>要素, <q>要素, <s>要素, <samp>要素, <small>要素, <span>要素, <strong>要素, <sub>要素, <sup>要素, <u>要素, <var>要素 です。

コンテンツモデル
0個以上のフレージングコンテンツ

0個以上のフレージングコンテンツが配置できます。

フレージングコンテンツに分類される要素は、<script>要素, <noscript>要素, <template>要素, <input>要素, <textarea>要素, <select>要素, <label>要素, <button>要素, <output>要素, <progress>要素, <meter>要素, <datalist>要素, <picture>要素, <object>要素, <img>要素, <iframe>要素, <embed>要素, <video>要素, <audio>要素, <canvas>要素, <map>要素, <area>要素, <a>要素, <ins>要素, <del>要素, <abbr>要素, <b>要素, <bdi>要素, <bdo>要素, <cite>要素, <code>要素, <data>要素, <dfn>要素, <em>要素, <i>要素, <kbd>要素, <mark>要素, <q>要素, <s>要素, <samp>要素, <small>要素, <span>要素, <strong>要素, <sub>要素, <sup>要素, <u>要素, <var>要素, <time>要素, <ruby>要素, <br>要素, <wbr>要素, <slot>要素, テキスト, <meta>要素, <link>要素 です。

タグの省略

どちらのタグも省略できません。

コンテンツ属性

グローバル属性のみ

DOM インターフェイス
HTMLElement
  1. [Exposed=Window]
  2. interface HTMLElement : Element {
  3. [HTMLConstructor] constructor();
  4.  
  5. // metadata attributes
  6. [CEReactions] attribute DOMString title;
  7. [CEReactions] attribute DOMString lang;
  8. [CEReactions] attribute boolean translate;
  9. [CEReactions] attribute DOMString dir;
  10.  
  11. // user interaction
  12. [CEReactions] attribute (boolean or unrestricted double or DOMString)? hidden;
  13. [CEReactions] attribute DOMString inert;
  14. undefined click();
  15. [CEReactions] attribute DOMString accessKey;
  16. readonly attribute DOMString accessKeyLabel;
  17. [CEReactions] attribute boolean draggable;
  18. [CEReactions] attribute boolean spellcheck;
  19. [CEReactions] attribute DOMString writingSuggestions;
  20. [CEReactions] attribute DOMString autocapitalize;
  21.  
  22. [CEReactions] attribute [LegacyNullToEmptyString] DOMString innerText;
  23. [CEReactions] attribute [LegacyNullToEmptyString] DOMString outerText;
  24.  
  25. ElementInternals attachInternals();
  26.  
  27. // The popover API
  28. undefined showPopover();
  29. undefined hidePopover();
  30. boolean togglePopover(optional boolean force);
  31. [CEReactions] attribute DOMString? popover;
  32. };
  33.  
  34. HTMLElement includes GlobalEventHandlers;
  35. HTMLElement includes ElementContentEditable;
  36. HTMLElement includes HTMLOrSVGElement;
Element
  1. [Exposed=Window]
  2. interface Element : Node {
  3. readonly attribute DOMString? namespaceURI;
  4. readonly attribute DOMString? prefix;
  5. readonly attribute DOMString localName;
  6. readonly attribute DOMString tagName;
  7.  
  8. [CEReactions] attribute DOMString id;
  9. [CEReactions] attribute DOMString className;
  10. [SameObject, PutForwards=value] readonly attribute DOMTokenList classList;
  11. [CEReactions, Unscopable] attribute DOMString slot;
  12.  
  13. boolean hasAttributes();
  14. [SameObject] readonly attribute NamedNodeMap attributes;
  15. sequence<DOMString> getAttributeNames();
  16. DOMString? getAttribute(DOMString qualifiedName);
  17. DOMString? getAttributeNS(DOMString? namespace, DOMString localName);
  18. [CEReactions] undefined setAttribute(DOMString qualifiedName, DOMString value);
  19. [CEReactions] undefined setAttributeNS(DOMString? namespace, DOMString qualifiedName, DOMString value);
  20. [CEReactions] undefined removeAttribute(DOMString qualifiedName);
  21. [CEReactions] undefined removeAttributeNS(DOMString? namespace, DOMString localName);
  22. [CEReactions] boolean toggleAttribute(DOMString qualifiedName, optional boolean force);
  23. boolean hasAttribute(DOMString qualifiedName);
  24. boolean hasAttributeNS(DOMString? namespace, DOMString localName);
  25.  
  26. Attr? getAttributeNode(DOMString qualifiedName);
  27. Attr? getAttributeNodeNS(DOMString? namespace, DOMString localName);
  28. [CEReactions] Attr? setAttributeNode(Attr attr);
  29. [CEReactions] Attr? setAttributeNodeNS(Attr attr);
  30. [CEReactions] Attr removeAttributeNode(Attr attr);
  31.  
  32. ShadowRoot attachShadow(ShadowRootInit init);
  33. readonly attribute ShadowRoot? shadowRoot;
  34.  
  35. Element? closest(DOMString selectors);
  36. boolean matches(DOMString selectors);
  37. boolean webkitMatchesSelector(DOMString selectors); // legacy alias of .matches
  38.  
  39. HTMLCollection getElementsByTagName(DOMString qualifiedName);
  40. HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName);
  41. HTMLCollection getElementsByClassName(DOMString classNames);
  42.  
  43. [CEReactions] Element? insertAdjacentElement(DOMString where, Element element); // legacy
  44. undefined insertAdjacentText(DOMString where, DOMString data); // legacy
  45. };
GlobalEventHandlers
  1. interface mixin GlobalEventHandlers {
  2. attribute EventHandler onabort;
  3. attribute EventHandler onauxclick;
  4. attribute EventHandler onbeforeinput;
  5. attribute EventHandler onbeforematch;
  6. attribute EventHandler onbeforetoggle;
  7. attribute EventHandler onblur;
  8. attribute EventHandler oncancel;
  9. attribute EventHandler oncanplay;
  10. attribute EventHandler oncanplaythrough;
  11. attribute EventHandler onchange;
  12. attribute EventHandler onclick;
  13. attribute EventHandler onclose;
  14. attribute EventHandler oncontextlost;
  15. attribute EventHandler oncontextmenu;
  16. attribute EventHandler oncontextrestored;
  17. attribute EventHandler oncopy;
  18. attribute EventHandler oncuechange;
  19. attribute EventHandler oncut;
  20. attribute EventHandler ondblclick;
  21. attribute EventHandler ondrag;
  22. attribute EventHandler ondragend;
  23. attribute EventHandler ondragenter;
  24. attribute EventHandler ondragleave;
  25. attribute EventHandler ondragover;
  26. attribute EventHandler ondragstart;
  27. attribute EventHandler ondrop;
  28. attribute EventHandler ondurationchange;
  29. attribute EventHandler onemptied;
  30. attribute EventHandler onended;
  31. attribute OnErrorEventHandler onerror;
  32. attribute EventHandler onfocus;
  33. attribute EventHandler onformdata;
  34. attribute EventHandler oninput;
  35. attribute EventHandler oninvalid;
  36. attribute EventHandler onkeydown;
  37. attribute EventHandler onkeypress;
  38. attribute EventHandler onkeyup;
  39. attribute EventHandler onload;
  40. attribute EventHandler onloadeddata;
  41. attribute EventHandler onloadedmetadata;
  42. attribute EventHandler onloadstart;
  43. attribute EventHandler onmousedown;
  44. [LegacyLenientThis] attribute EventHandler onmouseenter;
  45. [LegacyLenientThis] attribute EventHandler onmouseleave;
  46. attribute EventHandler onmousemove;
  47. attribute EventHandler onmouseout;
  48. attribute EventHandler onmouseover;
  49. attribute EventHandler onmouseup;
  50. attribute EventHandler onpaste;
  51. attribute EventHandler onpause;
  52. attribute EventHandler onplay;
  53. attribute EventHandler onplaying;
  54. attribute EventHandler onprogress;
  55. attribute EventHandler onratechange;
  56. attribute EventHandler onreset;
  57. attribute EventHandler onresize;
  58. attribute EventHandler onscroll;
  59. attribute EventHandler onscrollend;
  60. attribute EventHandler onsecuritypolicyviolation;
  61. attribute EventHandler onseeked;
  62. attribute EventHandler onseeking;
  63. attribute EventHandler onselect;
  64. attribute EventHandler onslotchange;
  65. attribute EventHandler onstalled;
  66. attribute EventHandler onsubmit;
  67. attribute EventHandler onsuspend;
  68. attribute EventHandler ontimeupdate;
  69. attribute EventHandler ontoggle;
  70. attribute EventHandler onvolumechange;
  71. attribute EventHandler onwaiting;
  72. attribute EventHandler onwebkitanimationend;
  73. attribute EventHandler onwebkitanimationiteration;
  74. attribute EventHandler onwebkitanimationstart;
  75. attribute EventHandler onwebkittransitionend;
  76. attribute EventHandler onwheel;
  77. };
ElementContentEditable
  1. interface mixin ElementContentEditable {
  2. [CEReactions] attribute DOMString contentEditable;
  3. [CEReactions] attribute DOMString enterKeyHint;
  4. readonly attribute boolean isContentEditable;
  5. [CEReactions] attribute DOMString inputMode;
  6. };
HTMLOrSVGElement
  1. interface mixin HTMLOrSVGElement {
  2. [SameObject] readonly attribute DOMStringMap dataset;
  3. attribute DOMString nonce; // intentionally no [CEReactions]
  4.  
  5. [CEReactions] attribute boolean autofocus;
  6. [CEReactions] attribute long tabIndex;
  7. undefined focus(optional FocusOptions options = {});
  8. undefined blur();
  9. };
ARIA in HTML
ARIA in HTML に、この要素の記述はありません。
レンダリング
インラインボックス
フレージングコンテンツ
  1. nobr {
  2. white-space: nowrap;
  3. }

CSS を大雑把に読むと、 ボックスについて、特に指定はされていません。既定値から、インラインレベルのボックス(インラインボックス)を生成すると思われます。 などになります。

説明
nobr要素は、改行禁止を表します。
  1. <!DOCTYPE html>
  2. <html lang="ja">
  3. <head>
  4. <meta charset="utf-8">
  5. <title>nobr要素の例 - (Example of nobr element) | 離珠のHTMLでしぃ！</title>
  6. </head>
  7. <body>
  8. <h1>nobr要素の例</h1>
  9. <nobr>
    10. nobr要素は、改行禁止を表します。
  10. </nobr>
  11. </body>
  12. </html>

このサンプルへのリンクです。
(./exnobr.htm)

参照元
参照元
JSONデータ
JSON形式での、データのイメージです。
  1. {
  2. "nobr": {
  3. "check": "2025-01-23",
  4. "group": "Textlevel",
  5. "element": "- - (%Phrasing)* -- nobr. (Normal elements.) [Flow|Phrasing|Palpable] --",
  6. "attlist": {"%Global;": ""},
  7. "comment": "改行禁止 (nobr.)",
  8. "point": "改行禁止を表します。",
  9. "kind": "Normal",
  10. "categories": [
  11. "Flow",
  12. "Phrasing",
  13. "Palpable",
  14. ],
  15. "used": "parent %Phrasing",
  16. "contentmodel": "nobr (%Phrasing)*",
  17. "tag": [
  18. "-",
  19. "-",
  20. ],
  21. "attributes": "Global",
  22. "dominterface": "HTMLElement",
  23. "rendering": "Phrasing",
  24. "reference": [
  25. {
  26. "title": "HTML Living Standard. 16.2 Non-conforming features.",
  27. "href": "https://html.spec.whatwg.org/multipage/obsolete.html#non-conforming-features",
  28. "heading": "HTML Living Standard. 16.2 Non-conforming features",
  29. "sub": "Last Updated 10 February 2025",
  30. },
  31. {
  32. "title": "HTML Living Standard. 15 Rendering 15.3.4 Phrasing content.",
  33. "href": "https://html.spec.whatwg.org/multipage/rendering.html#phrasing-content-3",
  34. "heading": "HTML Living Standard. 15 Rendering 15.3.4 Phrasing content",
  35. "sub": "Last Updated 10 February 2025",
  36. },
  37. {
  38. "title": "HTML 5.2 W3C Recommendation. 11.2. Non-conforming features. W3C Recommendation, 14 December 2017.",
  39. "href": "https://www.w3.org/TR/2017/REC-html52-20171214/obsolete.html#non-conforming-features",
  40. "heading": "HTML 5.2 W3C 勧告. 11.2. Non-conforming features",
  41. "sub": "W3C勧告、2017年12月14日",
  42. },
  43. {
  44. "title": "HTML 5.2 W3C Recommendation. 10.3.4. Phrasing content. W3C Recommendation, 14 December 2017.",
  45. "href": "https://www.w3.org/TR/2017/REC-html52-20171214/rendering.html#non-replaced-elements-phrasing-content",
  46. "heading": "HTML 5.2 W3C 勧告. 10.3.4. Phrasing content",
  47. "sub": "W3C勧告、2017年12月14日",
  48. },
  49. {
  50. "title": "HTML 5.1 W3C Recommendation. 11.2. Non-conforming features. W3C Recommendation, 1 November 2016.",
  51. "href": "https://www.w3.org/TR/2016/REC-html51-20161101/obsolete.html#non-conforming-features",
  52. "heading": "HTML 5.1 W3C 勧告. 11.2. Non-conforming features",
  53. "sub": "W3C勧告、2016年11月1日",
  54. },
  55. {
  56. "title": "HTML 5.1 W3C Recommendation. 10.3.4. Phrasing content. W3C Recommendation, 1 November 2016.",
  57. "href": "https://www.w3.org/TR/2016/REC-html51-20161101/rendering.html#non-replaced-elements-phrasing-content",
  58. "heading": "HTML 5.1 W3C 勧告. 10.3.4. Phrasing content",
  59. "sub": "W3C勧告、2016年11月1日",
  60. },
  61. {
  62. "title": "HTML 5 W3C Recommendation. 11.2 Non-conforming features. W3C Recommendation, 28 October 2014.",
  63. "href": "https://www.w3.org/TR/2014/REC-html5-20141028/obsolete.html#non-conforming-features",
  64. "heading": "HTML 5 W3C 勧告. 11.2 Non-conforming features",
  65. "sub": "W3C勧告、2014年10月28日",
  66. },
  67. {
  68. "title": "HTML 5 W3C Recommendation. 10.3.4. Phrasing content. W3C Recommendation, 28 October 2014.",
  69. "href": "https://www.w3.org/TR/2014/REC-html5-20141028/rendering.html#phrasing-content-0",
  70. "heading": "HTML 5 W3C 勧告. 10.3.4. Phrasing content",
  71. "sub": "W3C勧告、2014年10月28日",
  72. },
  73. {
  74. "title": "MDN Web Docs. HTML <nobr>: The Non-Breaking Text element.",
  75. "href": "https://developer.mozilla.org/ja/docs/Web/HTML/Element/nobr",
  76. "heading": "MDN Web Docs. HTML <nobr>: 無改行テキスト要素",
  77. },
  78. ],
  79. "version": {
  80. "first": "non",
  81. "latest": "non",
  82. },
  83. }
  84. }

注意: 簡易に描画する為に、各項目の後ろに , を付与しています。JSON の形式では、末尾の項目の後には , は付けません。

最終確認日

2025-01-23

2.使用できるコンテキスト

3.コンテンツモデル

4.コンテンツ属性

5.DOM インターフェイス

6.アクセシビリティ

7.レンダリング

8.気を付ける点