根据HTML和CSS相关知识，使鼠标经过 ul的li变色
<!DOCTYPE html>
<html lang=”zh”>
<head>
<meta charset=”UTF-8″>
<meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
<meta http-equiv=”X-UA-Compatible” content=”ie=edge”>
<title>sdadad</title>
<style type=”text/css”>
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
li {
list-style: none
}
.fassf {
margin: 1.875rem auto;
height: 300px;
width: 170px;
background-color: #0000FF;
color: #fff;
}
li {
width: 8.75rem;
height: 40px;
line-height: 40px;
font-size: 16px;
background-color: tomato;
padding-left: 10px;
margin-bottom: 3px;
transition: all .3s;
margin-left: 10px;
/* cursor: pointer; */
}
li:hover {
background-color: greenyellow;
color: #0000FF;
margin-left: 13px;
cursor: pointer;
}
a {
text-decoration: none;
color: #fff;
}
li:hover a{
color: #0000FF;
}
</style>
</head>
<body>
<div class=”fassf”>
<ul>
<li><a href=”#”>1</a> <a href=”#”>3</a></li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</div>
</body>
</html>
不要过度关注属性名，hhhh
li:hover a 的意思是当鼠标经过li时，a会发生的事件
