*{margin: 0; padding: 0; box-sizing: border-box;}
.fl{float: left;}
.fr{float: right;}
.tc{text-align: center;}
.vm{vertical-align: middle;}
.bai{background: #fff;}
.di{display: inline-block;}
ul{list-style: none;}
.w1200{width:1200px;margin: 0 auto;}
body{font-family: "微软雅黑";font-size: 16px;}
a{text-decoration: none;color: #000;}
img{border: 0;max-width: 100%;}
input,button,img,a{ outline:none;border: none;}
.linetwo{overflow:  hidden;display: -webkit-box;text-overflow: ellipsis;
    -webkit-box-orient: vertical;}
.of{overflow: hidden;}
.clear::after{
	content: '';
	display: block;
	width: 0;
	height: 0;
	clear: both;
}
/*在谷歌下移除input[number]的上下箭头*/
input[type='number']::-webkit-outer-spin-button,
input[type='number']::-webkit-inner-spin-button{
    -webkit-appearance: none !important;
    margin: 0;
}
/*在firefox下移除input[number]的上下箭头*/
input[type="number"]{-moz-appearance:textfield;}
/*
文字行数
-webkit-line-clamp: 3;
 */