<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>样式转换</title>
<style type="text/css">
.luck{
width:400px;
height:200px;
border: 3xp groove;
background: coral;
<--!设置样式-->
}
</style>
<script type="text/javascript">
document.getElementById("con").style.background="black"//提取并转换样式
</script>
</head>
<body>
<div class="luck" id="con">你存在！我深深的脑海里！</div>
</body>
</html>
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