:out-of-range
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
尝试一下
这个伪类很有用,可以给用户提供一个视觉提示,让他们知道字段的当前值是否超出了允许的范围。
备注: 该伪类仅适用于具有(并可以接受)范围限制的元素。如果没有这样的限制,元素值就无所谓“in-range”和“out-of-range”。
语法
css
:out-of-range {
/* ... */
}
示例
HTML
html
<form action="" id="form1">
<p>Values between 1 and 10 are valid.</p>
<ul>
<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
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!";
}
结果
规范
Specification |
---|
HTML Standard # selector-out-of-range |
Selectors Level 4 # out-of-range-pseudo |
浏览器兼容性
BCD tables only load in the browser