<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>初步认识选择器</title>
<style type="text/css">
/*标签名选择器*/
div{
background-color: orange;
}
/*id id选择器*/
#one{
color:red;
}
/*class 类选择器 选择多个标签*/
.c1{
font-size:20px;
font-family: "kaiTi";
}
</style>
</head>
<body>
<h1 class="c1">我的标题</h1>
<p class="c1">我的段落</p>
<div id="one" class="c1">DIV1</div>
<div>DIV2</div>
<div class="c1">DIV3</div>
</body>
</html>
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