demo.css

*{
	font-family: system, -apple-system, '.SFNSDisplay-Regular', HelveticaNeue, Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft Yahei', sans-serif;
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
body{
	overflow-x:  hidden;
}
.demo{
	width: 100%;
	max-width: 640px;
	margin: 24px auto;
}
header{
	width: 100%;
	height: 170px;
	background-color: #4A90E2;
	position: absolute;
	top: 0;
	left: 0;
	z-index: -1;
}
header h1{
	color: #FFF;
	font-size: 36px;
	font-weight: normal;
	max-width: 640px;
	width: 100%;
	margin: 55px auto 36px auto;
}
.theme-select{
	max-width: 640px;
	width: 100%;
	margin: 0 auto;
}
.theme-select button{
	background: none;
	border: none;
	outline: none;
	color: #fff;
	font-size: 14px;
	text-align: center;
	line-height: 20px;
	height: 36px;
	padding: 8px 16px;
	margin-right: 0;
	cursor: pointer;
}
.theme-select button.active, .theme-select button:hover{
	border-bottom: 4px solid #F8E71C;
}
.event-trigger{
	margin-top: 210px;
}

.event-trigger h4{
	color: #333;
	margin: 0 0 14px 0;
}
.event-trigger table{
	width: 80%;
	border-collapse:separate;
	border-spacing:16px 8px;
	margin-left: -16px;
}
.event-trigger td{
	color: #4A90E2;
	font-size: 14px;
	text-align: center;
	padding: 8px;
	border: 1px solid #4A90E2;
	border-radius: 4px;
	cursor: pointer;
}
.event-trigger td:hover{
	color: #FFF;
	background-color: #4A90E2;
}
.notifies{
	position: fixed;
	top: 0;
	right: 0;
}
footer{
	border-top: 1px solid #CFDDDC;
	width: 100%;
	margin-top: 48px;
}
footer p{
	color: #333;
	font-size: 16px;
	max-width: 640px;
	width: 100%;
	margin: 18px auto;
}
footer p a{
	color: #4A90E2;
	text-decoration: none;
	cursor: pointer;
}
footer p a:hover{
	text-decoration: underline;
}