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,button {
    margin:0;
    padding:0;
    border:0;
    outline:0;
    vertical-align:baseline;
    background:transparent;
    box-sizing:border-box;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
}
img{
    vertical-align: middle;
}
h1,h2,h3,h4,h5,h6{ font-weight:normal;}

html, body {
    height: 100%;
    font-size: 16px;
    line-height: 1.2;
    letter-spacing: 1px;
    font-family: "Segoe UI","Lucida Grande",Helvetica,Arial,"Microsoft YaHei",FreeSans,Arimo,"Droid Sans","wenquanyi micro hei","Hiragino Sans GB","Hiragino Sans GB W3",FontAwesome,sans-serif;
    -webkit-font-smoothing: antialiased;
    font-smoothing: antialiased;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    color: #333;
}
article,aside,canvas,details,figcaption,figure,
footer,header,hgroup,menu,nav,section,summary {
    display:block;
}
ul,li{
    list-style:none;
}

a {
    margin:0;
    padding:0;
    border:0;
    color:#333;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
}
a,a:link,a:visited,a:active{ text-decoration:none;}
table {
    border-collapse:collapse;
    border-spacing:0;
}
input,button,select,textarea{ outline:none;border:none;}
input:focus,select:focus,textarea:focus{ outline:none;border:0;border:none;}
textarea{resize:none;}
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
              -webkit-transition-delay: 9999s;
             -webkit-transition: color 9999s ease-out, background-color 9999s ease-out;
}
input:-webkit-autofill{-webkit-box-shadow: 0 0 0px 1000px white inset;}
::-ms-clear, ::-ms-reveal{display: none;}
input:-ms-input-placeholder{font-size:12px;color:#9b9b9b;}
input:-moz-placeholder{font-size:12px;color:#9b9b9b;}
input::-moz-placeholder{font-size:12px;color:#9b9b9b;}
input:-ms-input-placeholder{font-size:12px;color:#9b9b9b;}
input::-webkit-input-placeholder,textarea::-webkit-input-placeholder{font-size:12px;color:#9b9b9b;}
/*公共类名*/
.auto,.main{width:1400px;margin:0 auto;}
.clearfix:after{content:"";clear:both;display:block;}
.pull-left{float:left;}
.pull-right{float:right;}
.txt-left{text-align:left;}
.txt-center{text-align:center;}
.txt-right{text-align:right;}
.caption {
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: #999;
}

.thumbnail {
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: #999;
}

/*页面变灰控制*/
.page-gray {
    filter:grayscale(100%);
    -webkit-filter:grayscale(100%);
    -moz-filter:grayscale(100%);
    -ms-filter:grayscale(100%);
    -o-filter:grayscale(100%);
    filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
    -webkit-filter:grayscale(1);
}