<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
.clk { padding-left: 47%; }
.dis { margin: 1% 47%; display: inline-block; border: 1px solid #000; 5%; }
ul{ list-style: none; padding-left: 0; margin: 0;}
li { margin-top: 6px; }
li:hover { background-color: yellow; }
a { text-decoration: none; }
</style>
<script src="http://apps.bdimg.com/libs/jquery/1.10.0/jquery.js"></script>
</head>
<body>
<div class="clk">
<button>点击切换</button>
</div>
<div class="dis">
<ul>
<li><a href="javascript:;">搜狗</a></li>
<li><a href="javascript:;">百度</a></li>
<li class="close"><a href="javascript:;">关闭</a></li>
</ul>
</div>
<script>
$(".clk").on("click", function(){
$(".dis").toggle()
});
$(".close").on("click", function(){
$(this).parents("div").hide();
})
</script>
</body>
</html>