body{background: #ffe2ee; margin: 0; text-align: center;}
.header{left:0; margin: 0; position:absolute; z-index:-100;}
.nav{background: #000; border: 1px solid black; height: 26px; margin: auto; text-align: left; width: 800px;}
.nav a{color: pink; font: 20px sans-serif; margin: 30px; text-decoration: none;}
.nav a:hover{text-decoration: underline;}
.content{background: #fff; border: 1px solid #000; margin: auto; text-align: left; width: 800px; z-index:1;}
.content p{padding: 5px;}
.ad {float: left; padding: 5px;}
.copyright{background: #000; color: #ccc; font: 12px sans-serif; height: 20px; line-height: 18px; margin: 0; padding: 0;}
.copyright a{color: pink;}
.floater{background:#eee; border:1px solid black; display:none; left:200px; position:fixed; top:100px; width:400px;}