/*清除浮动*/
.clear {
    clear: both;
}
.f-cb{
    zoom: 1;
}
.f-cb:after{
    display:block;
    height:0;
    clear:both;
    visibility:hidden;
    overflow:hidden;
    content:".";
}
.fl {
    float:left;
    display: inline;
}
.fr {
    float:right;
    display: inline;
}
.por{
    position: relative;
}
.poa{
    position: absolute;
}
.poa-f{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.pos-f{
    position: fixed;
}
.ovh{
    overflow: hidden;
}
.noselect{
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}
.z1{
    z-index: 1;
}
.z2{
    z-index: 2;
}
.dn{
    display: none;
}
.w-f{
    width: 100%;
}
.h-f{
    height: 100%;
}
.fwn{
    font-weight: normal;
}
.t-f{
    transition: all 0.5s;
}
.t-c{
    transition: color 0.5s;
}
.t-bg{
    transition: background 0.5s;
}

/*NEW*/
.i-ban{
	height:641px;

}