:out-of-range

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:out-of-range CSS 伪类 表示一个 <input> 元素,其当前值处于属性 min 和 max 限定的范围外。
 
/* 该伪类可选定任意的<input>, 但只有在该元素指定了取值范围,并且元素值处于指定范围时才有效 */
input:out-of-range {
  background-color: rgba(255, 0, 0, 0.25);
}

该伪类用于给用户一个可视化的提示,表示输入域的当前值处于允许范围外。

注意:该伪类仅适用于那些拥有(或可以接受)取值范围设定的元素。若缺少此类设定,元素值就无所谓“in-range”和“out-range”。

语法

:out-of-range

示例

HTML

<form action="" id="form1">
  <ul>Values between 1 and 10 are valid.
    <li>
      <input id="value1" name="value1" type="number" placeholder="1 to 10" min="1" max="10" value="12">
      <label for="value1">Your value is </label>
    </li>
  </ul>
</form>

CSS

li {
  list-style: none;
  margin-bottom: 1em;
}

input {
  border: 1px solid black;
}

input:in-range {
  background-color: rgba(0, 255, 0, 0.25);
}

input:out-of-range {
  background-color: rgba(255, 0, 0, 0.25);
  border: 2px solid red;
}

input:in-range + label::after {
  content: 'okay.';
}

input:out-of-range + label::after {
  content: 'out of range!';
}

输出

规范

规范 状态 备注
HTML Living Standard
:out-of-range
Living Standard Defines when :out-of-range matches elements in HTML.
Selectors Level 4
:out-of-range
Working Draft Initial definition.

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
:out-of-rangeChrome Full support 10Edge Full support 13Firefox Full support 29IE No support NoOpera Full support 11Safari Full support 5.1WebView Android Full support 2.3Chrome Android Full support 18Firefox Android Full support 16Opera Android Full support 11Safari iOS Full support 5Samsung Internet Android Full support 1.0

Legend

Full support  
Full support
No support  
No support

参阅