html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font: inherit;
    vertical-align: baseline;
    font-family: 'Microsoft Yahei';
}
select, input,button {
    font-family: 'Microsoft Yahei';
}
body {
    font-size: 12px;
}
ol, ul {
    list-style: none;
}
.clearfix:after{ content: ""; display: block; clear: both;}
.clearfix{zoom: 1;}
.fl{ float: left;}
.fr{ float: right;}
.mt{margin-top:15px}
.mr{margin-right:18px}
.ml{margin-left:15px}
.h50{height:50px}
.pd_lr{ padding: 0 15px;}
a{ text-decoration: none; color: #333;}
a:hover{ text-decoration: underline;}
.bg{ background-color:#fff ;}