使用方法:.父元素:hover .子元素(hover和子元素之间需要一个空格),如:
.a:hover .b
演示效果:
代码:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
.alarm:hover .divright {
display: block;
}
.alarm {
position: relative;
width: 60px;
height: 60px;
margin: 60px;
}
.alarm img {
width: 60px;
height: 60px;
}
.divright {
position: absolute;
color: white;
font-size: 17px;
background-color: red;
width: 23px;
height: 25px;
line-height: 25px;
left: 80%;
top: -12px;
text-align: center;
-webkit-border-radius: 24px;
border-radius: 24px;
display: none;
}
</style>
</head>
<body>
<div class="alarm">
<img src="img/1.png" />
<div class="divright">
3
</div>
</div>
</body>
</html>
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