<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>基本选择器</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script src="../../src/js/jquery-3.3.1.min.js"></script>
<style type="text/css">
div,span{
width: 180px;
height: 180px;
margin: 20px;
background: #9999CC;
border: #000 1px solid;
float:left;
font-size: 17px;
font-family:Roman;
}
div .mini{
width: 50px;
height: 50px;
background: #CC66FF;
border: #000 1px solid;
font-size: 12px;
font-family:Roman;
}
div .mini01{
width: 50px;
height: 50px;
background: #CC66FF;
border: #000 1px solid;
font-size: 12px;
font-family:Roman;
}
</style>
<script type="text/javascript">
</script>
</head>
<body>
<input type="button" value="保存" class="mini" name="ok" class="mini" />
<input type="button" value="改变 id 为 one 的元素的背景色为 红色" id="b1"/>
<input type="button" value=" 改变元素名为 <div> 的所有元素的背景色为 红色" id="b2"/>
<input type="button" value=" 改变 class 为 mini 的所有元素的背景色为 红色" id="b3"/>
<input type="button" value=" 改变所有的<span>元素和 id 为 two 的元素的背景色为红色" id="b4"/>
<h1>有一种奇迹叫坚持</h1>
<h2>自信源于努力</h2>
<div id="one">
id为one
</div>
<div id="two" class="mini" >
id为two class是 mini
<div class="mini" >class是 mini</div>
</div>
<div class="one" >
class是 one
<div class="mini" >class是 mini</div>
<div class="mini" >class是 mini</div>
</div>
<div class="one" >
class是 one
<div class="mini01" >class是 mini01</div>
<div class="mini" >class是 mini</div>
</div>
<span class="spanone">class为spanone的span元素</span>
<span class="mini">class为mini的span元素</span>
<input type="text" value="zhang" id="username" name="username">
</body>
</html> |
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