*{padding:0;margin:0;font-family:'Microsoft Yahei';color:#666;}
html{background: #fff;overflow-x: hidden;}
li {list-style:none;}
img {border:none;vertical-align:bottom}
a{text-decoration:none;}
.clear {zoom:1;}
.clear:after{display:block;content:'';clear:both;}
input[type="button"],input[type="submit"],input[type="reset"]{-webkit-appearance:none;}/*苹果按钮样式清除*/
textarea{-webkit-appearance:none;resize:none;}
.left{float: left;}
.right{float: right;}
input:focus,textarea:focus{outline:none;}/*input:focus焦点  改变线条 outline 背景 background*/
@media (min-width:320px) and (max-width: 399px) {
html{font-size: 14px;}
}
@media (min-width: 400px) and (max-width:600px){
html{font-size: 16px;}
}
@media (min-width: 601px) and (max-width:1300px){
html{font-size: 18px;}
}