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                 * {
                	margin:0;
                	padding:0;
                }
                body {
                	background:#ccc;
                	height:2500px;
                }
                .header {
                	height:90px;
                	width:100%;
                	background:rgba(97,105,255,0.6);
                }
                #nav {
                	height:60px;
                	width:100%;
                	background:rgba(45,49,111,0.5);
                }
                #go_top {
                	border:none;
                	outline:none;
                	width:40px;
                	height:39px;
                	position:fixed;
                	bottom:50px;
                	right:50px;
                	display:none;
                	transition:all 0.5s;
                	cursor:pointer;
                	background:url(../img/top_bg.png) no-repeat left top;
                }
                #go_top:hover {
                	background:url(../img/top_bg.png) left -40px;
                }
                #fddiv {
                	width:80px;
                	height:160px;
                	background:rgba(72,183,225,0.60);
                	position:absolute;
                	top:240px;
                	right:0;
                }
                
                
                
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