body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select{margin:0;padding:0} 
body{font:400 1em/1.8 'Microsoft Yahei', 'PingFang SC', 'Avenir', 'Segoe UI', 'Hiragino Sans GB', STHeiti, 'Microsoft Sans Serif', 'WenQuanYi Micro Hei', sans-serif;} 
a{color:#fff;text-decoration:none}
em{font-style:normal} 
li{list-style:none}
img{border:0;vertical-align:middle}
.clearfix::after{visibility: hidden;display: block;font-size: 0;content: ".";clear: both;height: 0;}