From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- files/zh-cn/web/css/_colon_in-range/index.html | 109 +++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 files/zh-cn/web/css/_colon_in-range/index.html (limited to 'files/zh-cn/web/css/_colon_in-range/index.html') diff --git a/files/zh-cn/web/css/_colon_in-range/index.html b/files/zh-cn/web/css/_colon_in-range/index.html new file mode 100644 index 0000000000..81437a911f --- /dev/null +++ b/files/zh-cn/web/css/_colon_in-range/index.html @@ -0,0 +1,109 @@ +--- +title: ':in-range' +slug: 'Web/CSS/:in-range' +translation_of: 'Web/CSS/:in-range' +--- +
{{CSSRef}}
+ +
in-range CSS 伪类 代表一个 {{htmlelement("input")}} 元素,其当前值处于属性{{htmlattrxref("min", "input")}} 和{{htmlattrxref("max","input")}} 限定的范围之内.
+ +
/* 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:in-range {
+  background-color: rgba(0, 255, 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内。

+ +
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

+ +
{{csssyntax}}
+ +

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!';
+}
+ +

结果

+
+ +
{{EmbedLiveSample('Example', 600, 140)}}
+ +

规范

+ + + + + + + + + + + + + + + + + + + + + +
规范状态备注
{{SpecName('HTML WHATWG', 'scripting.html#selector-in-range', ':in-range')}}{{Spec2('HTML WHATWG')}}Defines when :in-range matches elements in HTML.
{{SpecName('CSS4 Selectors', '#in-range-pseudo', ':in-range')}}{{Spec2('CSS4 Selectors')}}Initial specification.
+ +

浏览器兼容性

+ +
+
+ + +

{{Compat("css.selectors.in-range")}}

+
+
+ +

参考

+ + -- cgit v1.2.3-54-g00ecf