title - HTML: HyperText Markup Language 编辑
The title global attribute contains text representing advisory information related to the element it belongs to.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.Some typical uses:
- Labeling
<iframe>elements for assistive technology - Providing a programmatically associated label for an
<input>element as a fallback for a real<label> - Labeling controls in data tables
Additional semantics are attached to the title attributes of the <link>, <abbr>, <input>, and <menuitem> elements.
Multiline titles
The title attribute may contain several lines. Each U+000A LINE FEED (LF) character represents a line break. Some caution must be taken, as this means the following renders across two lines:
HTML
<p>Newlines in <code>title</code> should be taken into account,
like <abbr title="This is a
multiline title">example</abbr>.</p>Result
Title attribute inheritance
If an element has no title attribute, then it inherits it from its parent node, which in turn may inherit it from its parent, and so on.
If this attribute is set to the empty string, it means its ancestors' titles are irrelevant and shouldn't be used in the tooltip for this element.
HTML
<div title="CoolTip">
<p>Hovering here will show “CoolTip”.</p>
<p title="">Hovering here will show nothing.</p>
</div>Result
Accessibility concerns
Use of the title attribute is highly problematic for:
- People using touch-only devices
- People navigating with keyboards
- People navigating with assistive technology such as screen readers or magnifiers
- People experiencing fine motor control impairment
- People with cognitive concerns
This is due to inconsistent browser support, compounded by the additional assistive technology parsing of the browser-rendered page. If a tooltip effect is desired, it is better to use a more accessible technique that can be accessed with the above browsing methods.
- 3.2.5.1. The title attribute | W3C HTML 5.2: 3. Semantics, structure, and APIs of HTML documents
- Using the HTML title attribute – updated | The Paciello Group
- Tooltips & Toggletips - Inclusive Components
- The Trials and Tribulations of the Title Attribute - 24 Accessibility
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'title' in that specification. | Living Standard | No change from latest snapshot, HTML 5.1 |
| HTML 5.1 The definition of 'title' in that specification. | Recommendation | Snapshot of HTML Living Standard, no change from HTML5 |
| HTML5 The definition of 'title' in that specification. | Recommendation | Snapshot of HTML Living Standard. From HTML 4.01 Specification, it is now a true global attribute. |
| HTML 4.01 Specification The definition of 'title' in that specification. | Recommendation | Supported on all elements but <base>, <basefont>, <head>, <html>, <meta>, <param>, <script>, and <title>. |
Browser compatibility
BCD tables only load in the browser
See also
- All global attributes.
HTMLElement.titlethat reflects this attribute.
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