/* 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
BCD tables only load in the browser
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.