/*清除浮动*/
.clear {
    clear: both;
}
.f-cb{
    zoom: 1;
}
.f-cb:after {
    clear: both;
    content: ".";
    display: block;
    height: 0;
    overflow: hidden;
    visibility: hidden;
}
.fl {
	float:left;
}
.fr {
	float:right;
}
/*字体*/
.ari{
    font-family: "Arial";
}
/*字号*/
.f12{
    font-size: 12px;
}
.f14{
    font-size: 14px;
}
.f16{
    font-size: 16px;
}
.f18{
    font-size: 18px;
}
.f20{
    font-size: 20px;
}
.f22{
    font-size: 22px;
}
.f24{
    font-size: 24px;
}

.bold{
    font-weight: bold;
}

.por {
    position: relative;
}
.poa {
    position: absolute;
}
.poa-f {
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
}
.ovh {
    overflow: hidden;
}
.noselect {
    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 ease 0s;
}
.t-c {
    transition: color 0.5s ease 0s;
}
.t-bg {
    transition: background 0.5s ease 0s;
}