1. Concentrate all scattered background images involved in the page into a large image, and then use the large image for the web page. When a user accesses a page, they only need to send a request to the server once.
2. Directly use attributes such as background-position to accurately locate the required background part.
Example
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div>
<span></span>
<span></span>
<span></span>
</div>
</body>
<style>
.box span {
display: inline-block;
}
.j {
background: url("abcd.jpg") no-repeat -389px -141px;
width: 102px;
height: 112px;
}
.w {
background: url("abcd.jpg") no-repeat -117px -560px;
width: 135px;
height: 112px;
}
.t {
background: url("abcd.jpg") no-repeat -368px -417px;
width: 102px;
height: 112px;
}
</style>
</html>The above is an introduction to CSS sprite technology. I hope it will be helpful to everyone.