*,
::before,
::after{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	-webkit-tap-highlight-color: transparent;/*去除点击高亮*/
	vertical-align:middle;
	color:#303030;
	}
html,body{
	text-align: center;
	width: 100%;
	height: 100%;
	}
ul,ol,li{ 
	list-style: none;
	} 
a{
	display: block;
	text-decoration: none;
	}
input,button,img{
	border: none;
	vertical-align: middle;
	outline: none;
	-webkit-appearance: none;/*去除默认样式*/
	}