body {
	/*! background: url(../images/top.gif) center top no-repeat; */
	background-color: #f6fafd;
	color: #555;
	font-size: 13px;
	font-family: "Microsoft YaHei",Simsun,Tahoma
}

  .container {
	width: 980px;
	margin: 0 auto;
	/*! margin-top: 350px */
}

  .btn
   {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
    font-size: 20px;
    font-weight: bold;
    padding: 10px;
    border-radius:30px;
    color: #fff;
    background-color: #337ab7;
}
   .btn:hover {
    background-color: #000;
}

@media screen and (max-width: 960px) {
    .container {
        width: 98%;
    }
}