body {
	background: linear-gradient(to right, skyblue, purple);
}

h1 {
	color: #87CEEB;

	font-size: 65px;
}
a{margin-top: 20px;}
div {
	text-align: center;
	border: 100px white;
	padding: 10px 40px;
	background-image: linear-gradient(to right, #89c0f0 0%, #fbe6f0 100%);
	width: 600px;
	border-radius: 55px;
	box-shadow: 20px 20px 50px white inset; 
	-moz-border-radius: 25px;
	/* 老的 Firefox */
	padding: 2cm;
}

h2 {
	background-image: linear-gradient(to right, #dec2ff, #b0c7a1);
	-webkit-background-clip: text;
	color: transparent;
	font-size: 40px;
}

h4{
	font-size: 30px;
	color: #c70003;
}

h3 {
	color: white;
	font-size: 20px;
}
.xx {
	color: white;
	font-size: 20px;
}

.button {
	margin-top: 20px;
	background-image: linear-gradient(to right, #25aae1, #40e495);
	/* Green */
	border: none;
	color: ghostwhite;
	padding: 25px 80px;
	text-align: center;
	text-decoration: none;
	display: inline-block;
	font-size: 30px;
	margin: 4px 2px;
	-webkit-transition-duration: 0.4s;
	/* Safari */
	transition-duration: 0.4s;
	cursor: pointer;
	border-radius: 40px;
}

.button:hover {
	box-shadow: 0 12px 16px 0 rgba(149, 211, 218, 0.2), 0 17px 50px 0 rgba(0, 0, 0, 0.19)
}