<!DOCTYPE html>
/*带动画效果的hover*/
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.ele{
background-color: #dddddd;/*带动画效果的hover*/
}
.ele:hover{
border: 2px solid red;
}
.ele:hover .ele-item{
color: red;
}
</style>
</head>
<body>
<div class="ele">
<div>123</div>
<div class="ele-item">123</div>
</div>
</body>
</html>