html {overflow-y:scroll;}
body {margin:0; padding:0; font-size:12px;font-family: 'PingFang SC';}
div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,blockquote,p{padding:0; margin:0;}
table,td,tr,th{font-size:12px;}
li{list-style-type:none;}
img{vertical-align:top;border:0;}
ol,ul {list-style:none;}
h1,h2,h3,h4,h5,h6{font-size:12px; font-weight:normal;}
address,cite,code,em,th {font-weight:normal; font-style:normal;}
a{text-decoration: none; color:#333;}
img{border:0;}
.clearfix:after{
    display: block;
    clear: both;
    content: "";
    visibility: hidden;
    height: 0;
}