*{margin: 0;padding: 0; list-style: none;}
body{
	background: url(../img/xhr.jpg);
	background-attachment: fixed;
	background-size: cover;
}
.wrapper{
	width: 700px;
	height: 410px;
}
.wrapper canvas{
	border: 1px solid royalblue;
	border-radius: 25px;
	margin-left: 50px;
	box-shadow: 10px 10px 5px #888888; /*水平位移 垂直位移 阴影半径*/
	margin-top: 20px;
	
	
}
.wrapper .btn-list{
	width:100%;
	text-align: center;
	border-radius: 25px;
	margin-top: 20px;
	
}
.wrapper ul li{
	display: inline-block;
	margin-left: 30px;
}
.wrapper ul li input{
	background-color:#f40;
	display: block;
	color: #fff;
	border: none;
	padding: 6px 15px;
	font-size: 16px;
	cursor: pointer;
	border-radius: 25px;
}
.wrapper .btn-list li input:hover{
	border:1px solid rebeccapurple;
	box-shadow: 0 12px 16px 0 rgba(0, 0, 0, 0.24);
}