/*样式清空*/
body, h1, h2,h3,h4,h5,h6,p,dl,dd,ol,ul,form, input,textarea,th,td,select { margin:0; padding:0;}
em,i { font-style:normal;}
li { list-style:none;}
a { text-decoration:none; cursor:pointer; color: black;}
a:focus {outline:none;}
b{ font-weight:normal;}
img { border:none; vertical-align:top;}
input, textarea {vertical-align: middle;outline: none; border:none; background:none;box-sizing:content-box;}
textarea { resize:none; overflow:auto; }
table { border-spacing:0px; border:none; border-collapse:collapse;}
body, input, select, button, textarea {font-family: "微软雅黑";}
html, body {position: relative;height: 100%;}

.centerbox{
    width: 1120px;
    min-width: 1120px;
    margin: 0 auto;
}
.clear{
  zoom:1;
}
.clear:after{
  content: "";
  display: block;
  clear: both;
}