body{
	margin:0;
	padding:0;
	font-family: 'Arial';
	background-color: #3498db;
}

#s1{
	width:420px;
	overflow: hidden;
	margin: auto;
	margin-top: 200px;
	padding: 20px;
	background: #fff;
	border: 1px solid silver;
	border-radius: 50px;
}
#s1 h1{
	text-align: center;
}
#s1 input{
	width:412px;
	height:35px;
	margin-bottom: 10px;
	border-radius: 10px;
	border: 1px solid silver;
	padding: 5px;
}

#s1 .btn{
	
	padding: 5px;
	width: 412px;
	border-radius: 3px;
	border: 0px;
	font-size: 18px;
	color: #fff;
	background-color: #3498db;
}