过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
过时
HTML Teletype Text element
(
<tt>
) creates inline text which is presented using the
user agent's
default monospace font face.
This element was created for the purpose of rendering text as it would be displayed on a fixed-width display such as a teletype, text-only screen, or line printer.
The terms non-proportional , monotype ，和 monospace are used interchangeably and have the same general meaning: they describe a typeface whose characters are all the same number of pixels wide.
This element is obsolete, however. You should use the more semantically helpful
<code>
,
<kbd>
,
<samp>
，或
<var>
elements for inline text that needs to be presented in monospace type, or the
<pre>
tag for content that should be presented as a separate block.
<span>
element, styling it as desired using CSS. The
font-family
property is a good place to start.
| 内容类别 | 流内容 , 措词内容 ，可触及内容。 |
|---|---|
| 准许内容 | 措词内容 . |
| Tag omission | None, both the starting and ending tag are mandatory. |
| Permitted parents | Any element that accepts 措词内容 . |
| Permitted ARIA roles | 任何 |
| DOM 接口 |
HTMLElement
|
此元素只包括 全局属性
此范例使用
<tt>
to show text entered into, and output by, a terminal application.
<p>Enter the following at the telnet command prompt: <code>set localecho</code><br /> The telnet client should display: <tt>Local Echo is on</tt></p>
You can override the browser's default font—if the browser permits you to do so, which it isn't required to do—using CSS:
tt {
font-family: "Lucida Console", "Menlo", "Monaco", "Courier",
monospace;
}
<p>Enter the following at the telnet command prompt: <code>set localecho</code><br /> The telnet client should display: <tt>Local Echo is on</tt></p>
<tt>
element is, by default, rendered using the browser's default non-proportional font. You can override this using CSS by creating a rule using the
tt
selector, as seen in the example
Overriding the default font
above.
User-configured changes to the default monospace font setting may take precedence over your CSS.
Although this element wasn't officially deprecated in HTML 4.01, its use was discouraged in favor of the semantic elements and/or CSS. The
<tt>
element is obsolete in HTML 5.
| 规范 | 状态 | 注释 |
|---|---|---|
|
HTML5
The definition of '<tt>' in that specification. |
推荐 | |
|
HTML 4.01 Specification
The definition of '<tt>' in that specification. |
推荐 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
tt
弃用
|
Chrome 完整支持 Yes | Edge 完整支持 12 |
Firefox
完整支持
Yes
注意事项
|
IE 完整支持 Yes | Opera 完整支持 Yes | Safari 完整支持 Yes | WebView Android 完整支持 Yes | Chrome Android 完整支持 Yes |
Firefox Android
完整支持
Yes
注意事项
|
Opera Android 完整支持 Yes | Safari iOS 完整支持 Yes | Samsung Internet Android 完整支持 Yes |
完整支持
弃用。不要用于新网站。
见实现注意事项。
<code>
,
<var>
,
<kbd>
，和
<samp>
元素
<pre>
element for displaying preformatted text blocks