.w {
    width: 1200px;
    margin: 0 auto;
}

/* 专门放初始化css */
body {
    font: 14px arial, 'Microsoft Yahei';
    color: #333;
    margin:0px;
}
header{background:#fff;}

li {    list-style: none;}

img {    /* 清除图片底部默认缝隙 */
    vertical-align: middle;}

/*em,i {    font-style: normal;}*/

input,button {
    /* 清除默认边框 */
    border: 0;
    /* 清除默认轮廓线 */
    outline: 0;}

h1,h2,h3,h4,h5,h6 {font-weight: normal;
    font-size: 100%;
    margin: 0;
    padding: 0;
    color: #444;}


a {    text-decoration: none;
    color: #040404}


a:hover {
    text-decoration: underline;}

table,td,th {    border-spacing: 0;
    border-collapse: collapse}

fieldset,img {    border: 0;}

address,caption,cite,code,dfn,em,strong,th,var {
    font-weight: normal;
    font-style: normal;
}

strong {    font-weight: bold;
}

ol,ul {    list-style: none;
    margin: 0;
    padding: 0;
}

li {    list-style: none;
}

caption,th {    text-align: left;

}

q:before,q:after {    content: '';}
.mt0 {    margin-top: 0px !important;}

.mt40 {    margin-top: 40px}

abbr,acronym {    border: 0;}

.mt60 {    margin-top: 60px !important;}

.blank40 {    height: 10px;
    clear: both
}
main{width:100%;
}
nav{width:1200px;
    margin:auto;
   /* overflow:hidden;*/
}
footer{background:#0071be;
     clear:both;
     overflow:hidden;
    /* margin-top:50px;*/}

aside{width:1200px;
    margin:auto;
    background:#FFF;
    overflow:hidden;
}