* {
	padding: 0;
	margin: 0;
}

/* 字体 by http://www.fonts.net.cn/font-32030420746.html */
@font-face {
	font-family: '站酷快乐体';
	src: url('../fonts/站酷快乐体.ttf');
}

body {
	padding: 2px;
}

button {
	font-family: "站酷快乐体";
	letter-spacing: 0.15em;
}

article {
	width: 99%;
	max-width: 1000px;
	min-width: 300px;
	margin: 0px auto;
	/* font-family: "微软雅黑", arial; */
	font-family: "站酷快乐体";
	border-radius: 5px;
	border: solid 1px grey;
	position: fixed;
	top: 50%;
	left: 50%;
	-webkit-transform: translate(-50%, -50%);
	-moz-transform: translate(-50%, -50%);
	-ms-transform: translate(-50%, -50%);
	-o-transform: translate(-50%, -50%);
	box-shadow: 5px 5px 5px rgba(136, 136, 136, 0.5);
	-webkit-box-shadow: 5px 5px 5px rgba(136, 136, 136, 0.5);
	-moz-box-shadow: 5px 5px 5px rgba(136, 136, 136, 0.5);
	-ms-box-shadow: 5px 5px 5px rgba(136, 136, 136, 0.5);
	-o-box-shadow: 5px 5px 5px rgba(136, 136, 136, 0.5);
	filter: progid:DXImageTransform.Microsoft.Shadow(Color='rgba(136, 136, 136, 0.5)', Direction='135', Strength='5');
	transform: translate(-50%, -50%);
}

header {
	text-align: center;
	height: 40px;
	font-weight: normal;
	line-height: 40px;
	letter-spacing: 0.2em;
	-webkit-text-shadow: 5px 5px 3px rgba(0, 0, 0, 0.5);
	-moz-text-shadow: 5px 5px 3px rgba(0, 0, 0, 0.5);
	-ms-text-shadow: 5px 5px 3px rgba(0, 0, 0, 0.5);
	-o-text-shadow: 5px 5px 3px rgba(0, 0, 0, 0.5);
	filter: Shadow(Color='rgba(0, 0, 0, 0.5)', Direction='135', Strength='3');
	filter: dropshadow(OffX=5, OffY=5, Color='rgba(0, 0, 0, 0.5)', Positive='true');
	text-shadow: 5px 5px 3px rgba(0, 0, 0, 0.5);
}

nav {
	width: 95%;
	padding: 8px;
	margin: 10px auto;
	background: #00a4ff;
	border-radius: 5px;
	-webkit-box-shadow: 5px 5px 6px rgb(0, 164, 255, 0.5);
	-ms-box-shadow: 5px 5px 6px rgb(0, 164, 255, 0.5);
	-moz-box-shadow: 5px 5px 6px rgb(0, 164, 255, 0.5);
	-o-box-shadow: 5px 5px 6px rgb(0, 164, 255, 0.5);
	box-shadow: 5px 5px 6px rgb(0, 164, 255, 0.5);
}

nav ul li {
	float: left;
	width: 25%;
	height: 40px;
	text-align: center;
	line-height: 40px;
	list-style-type: none;
	color: white;
	border-bottom: solid 2px #00a4ff;
	letter-spacing: 0.2em;
}

li:hover {
	background: #1AAF5D;
}

.active {
	border: none;
	border-bottom: solid 2px #8800ff;
}

section {
	width: 90%;
	height: 350px;
	margin: 30px auto 0px;
	position: relative;
	border: solid 1px gray;
}

section button {
	position: absolute;
	top: 0;
	right: 0;
	padding: 5px 8px;
	border: none;
	color: white;
	background: #FF69B4;
	display: block;
	font-size: 14px;
}

section div {
	position: absolute;
	top: 50%;
	left: 50%;
	-webkit-transform: translate(-50%, -50%);
	-moz-transform: translate(-50%, -50%);
	-ms-transform: translate(-50%, -50%);
	-o-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);
	width: 95%;
	line-height: 28px;
	letter-spacing: 0.2em;
	text-align: center;
	border-bottom: solid 1px gray;
	/* font-family: "站酷快乐体"; */
	word-wrap:break-word;
}

article>button {
	display: block;
	width: 145px;
	height: 35px;
	line-height: 35px;
	font-size: 14px;
	text-align: center;
	color: white;
	border: none;
	border-radius: 20px;
	background: #FF69B4;
	margin: 10px auto;
}

footer {
	height: 30px;
	color: darkgray;
	line-height: 30px;
	text-align: center;
	font-size: 12px;
	margin-bottom: 10px;
	letter-spacing: 0.12em;
}

@media (max-width:420px) {
	article {
		width: 96%;
	}

	nav {
		width: 90%;
	}
}

/* 625px */
@media (max-height:645px) {
	header {
		height: 30px;
		line-height: 30px;
	}

	nav {
		margin: 5px auto 0px;
	}

	article {
		position: relative;
		top: 0;
		left: 0;
		-webkit-transform: none;
		-moz-transform: none;
		-ms-transform: none;
		-o-transform: none;
		transform: none;
		margin: 5px auto;
	}

	section {
		height: 320px;
		margin: 10px auto 0px
	}

	article>button {
		margin: 10px auto;
		width: 125px;
		height: 30px;
		line-height: 30px;
	}

	footer {
		height: 20px;
		line-height: 20px;
		text-align: center;
		margin-bottom: 5px;
	}

	nav ul li {
		height: 30px;
		line-height: 30px;
	}
}