.foot{
    position: fixed;bottom: 0px;background: #fff;width: 100%;height: 50px;z-index: 999;
}
.foot .tabItem{
    float: left;width:50%;text-align: center;padding: 5px;color: #000;font-size: 12px;
}
.foot .tabItem img{
    width:25px;height:25px;
}
.foot .tabItem p{
    margin-top:2px;
}
.tabIcon_on{
    width: 100%;
    height: 25px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}
.tabIcon{
    width: 100%;
    height: 25px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}