This article mainly introduces the code to implement the CSS mouse expansion effect on both sides of the element underline. The editor thinks it is quite good. Now I will share it with you and give it as a reference. Let’s follow the editor and take a look
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>鼠标移入下划线展开</title>
<style type="text/css">
#underline{
width: 200px;
height: 50px;
background: #ddd;
margin: 20px;
position: relative;
}
#underline:after{
content: "";
width: 0;
height: 1px;
background: blue;
position: absolute;
top: 100%;
left: 50%;
transition: all .8s;
}
#underline:hover:after{
left: 0%;
width: 100%;
}
</style>
</head>
<body>
<p id="underline"></p>
</body>
</html>Related recommendations:
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