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<html>
<head>
<title>我的下拉菜单</title>
<style>
<!--
body {
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
}
.blue{
background-color:#7598FB;
color: #000000;
}
.red{
background-color:#E20A0A;
color: #ffffff;
}
.green{
background-color:# ...