#tiWeiShi,#tiHuLian,#contactStyle,#recruitInfo{
    width: 100%;
    height: 250px;
}
#tiWeiShi{
    background: url("../img/tws.png") no-repeat center center;
}
#tiHuLian{
    background: url("../img/thl.png") no-repeat center center;
}
#contactStyle{
    background: url("../img/lxfs.png") no-repeat center center;
}
#recruitInfo{
    background: url("../img/xiaocpyc.png") no-repeat center center;
}
#tiWeiShi:hover{
    background: url("../img/dtws.png") no-repeat center center;
    transition: all .5s linear ;
}
#tiHuLian:hover{
    background: url("../img/dthl.png") no-repeat center center;
    transition: all .5s linear ;
}
#contactStyle:hover{
    background: url("../img/dlxfs.png") no-repeat center center;
    transition: all .5s linear ;
}
#recruitInfo:hover{
    background: url("../img/dacpyc.png") no-repeat center center;
    transition: all .5s linear ;
}