body, button, input, select, textarea {
    font-size: 12px;
    font-family: 'Microsoft Yahei', '微软雅黑', \5FAE\8F6F\96C5\9ED1, '宋体', \5b8b\4f53, arial, 'Hiragino Sans GB', Tahoma, Arial, Helvetica;
}
html, body {
    width: 100%;
    height: 100%;
}
html {
    color: #000;
}
html, body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {
    margin: 0;
    padding: 0;
    border: 0;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
}
ul, ol, li, dl, dd, dt {
    list-style: none;
}
a {
    text-decoration: none;
    cursor: pointer;
}
.fr {float: right}
.fl {float: left}
.m-t80 {margin-top: 80px;}
.m-t20 {margin-top: 20px}
.p-t80 {padding-top: 80px}
.m-b10 {margin-bottom: 10px}
.p-t30 {padding-top: 30px}
.pd80 {padding: 80px 0px}
.pd30 {padding: 30px 0px}
.m-l50 {margin-left: 50px}
.gray {background-color: #f3f3f3}
input {outline: none}
.clearfix:after {
    content: ".";
    display: block;
    height: 0;
    font-size: 0;
    clear: both;
    visibility: hidden;
}

.clearfix {
    zoom: 1;
}