<!DOCTYPE html>标签:hover,color,前端,当鼠标,011,background,image From: https://www.cnblogs.com/lfyxys/p/16906382.html
<html lang="en">
<head>
<meta charset="UTF-8">
<title>hover</title>
<style>
.menu{
width: 100px;
background-color: #9a9a9a;
line-height: 200px;
float: left;
margin: 0 1px;
}
/*当鼠标移动到当前标签上时,以下css属性才生效*/
.menu:hover{
background-color: #77a9f9;
}
</style>
</head>
<body style="width: 980px;margin: 0 auto;text-align: center">
<div style="height: 200px;background-color: #e75e15">
<div class="menu">第一章</div>
<div class="menu">第二章</div>
<div class="menu">第三章</div>
<div style="clear: both"></div>
</div>
<h3>当鼠标移动到当前标签上时,hover属性才生效</h3>
<h3>background-image:url('image/4.gif'); # 默认,div大,图片重复放</h3>
<h3>background-repeat: repeat-y --y轴重复铺开;</h3>
<h3>background-position-x:定位背景图的x轴位置;</h3>
<h3>background-position-y:定位背景图的y轴位置;</h3>
</body>
</html>