body {
	text-align:center;
}

#content {
	margin-right:auto;
	margin-left:auto;
	vertical-align:middle;
	width:100%;
	position: relative;
	font-family: sans-serif;
	font-weight: bold;
}

h1 {
	font-weight: 400;
	margin: 0;
	font-size: 18px;
	font-family: "微软雅黑";
}

h3 {
	font-weight: normal;
	margin: 0;
}

button {
	padding: 2px 0;
	border: 1px solid;
	x-height: 19px;
	margin: 4px 0 0 0;
	width: 100%;
	font-weight: bold;
	font-family: sans-serif;
}



#learnLink {
	background-image: -webkit-linear-gradient(top, rgb(162, 178, 239), rgb(97, 124, 227));
}
#learnLink:hover {
	background-image: -webkit-linear-gradient(top, rgb(192, 208, 269), rgb(127, 154, 255));
}
