如何使用JavaScript设置元素的不透明度级别？
使用JavaScript中的opacity 属性设置不透明度级别。您可以尝试运行以下代码以使用JavaScript设置元素的不透明度级别-
示例
<!DOCTYPE html>
<html>
<head>
<style>
#box {
width: 450px;
background-color: gray;
}
</style>
</head>
<body>
<p>Click below to set Opacity.</p>
<button type="button" onclick="display()">Set Opacity</button>
<div id="box">
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
<p>This is a div. This is a div. This is a div. This is a div. This is a div.</p>
</div>
<br>
<script>
function display() {
document.getElementById("box").style.opacity = "0.5";
}
</script>
</body>
</html>热门推荐
10 祝孙辈生日祝福语简短
11 恋人跨年祝福语大全简短
12 考大学敬酒简短祝福语
13 开工投产大吉祝福语 简短
14 偶然结婚祝福语朋友简短
15 感谢学长学姐祝福语简短
16 戏精的祝福语简短
17 我要结婚祝福语简短
18 婚前女儿生日祝福语简短