html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure,
footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video {
    margin:0;
    padding:0;
    border:0;
    outline:0;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
}

body {
    line-height:1;
    font-size: 14px;
    font-family: Microsoft Yahei, Arial, Helvetica, sans-serif;
}

:focus {
    outline:1;
}

article,aside,canvas,details,figcaption,figure,
footer,header,hgroup,menu,nav,section,summary {
    display:block;
}

nav ul {
    list-style:none;
}
a {
    margin:0;
    padding:0;
    border:0;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
    outline: none;
    text-decoration: none;
}
table {
    border-collapse:collapse;
    border-spacing:0;
}
img {
    vertical-align: middle;
    border: 0;
}
hr{
    display:block;
    height:1px;
    border:0;
    border-top:1px solid #cccccc;
    margin:1em 0;
    padding:0;
}

input, select {
    vertical-align:middle;
}

.mask {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height:100%;
    background: black;
    opacity: 0.8;
    filter: alpha(opacity=80);
    -moz-opacity: 0.8;
    -khtml-opacity: 0.8;
    z-index: 2;
}
.hide {
    display: none;
}
.clear {
    zoom: 1
}

.clear:after {
    content: "";
    display: block;
    clear: both
}
.hand{
    cursor: pointer;
}
.mid-cent{
    position: absolute;
    left:0;
    top:0;
    right:0;
    bottom:0;
    margin:auto;
}
.c-gray {
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
    filter: gray;
}