.coo_par_cen{
    width: 100%;
    min-height: 422px;
}
.coo_par_cen ul{
    margin-right: -20px;
}
.coo_par_cen li{
    float: left;
    width: 220px;
    height: 142px;
    position: relative;
    margin: 0 20px 20px 0;
    transform: all .4s;
}
.coo_par_cen li img{
    width: 100%;
    height: 100%;
}
.par_img_m{
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba( 28, 185, 158 ,0.8);
    display: none;
}
.par_img_m>span{
    display: block;
    font-size: 20px;
    color: #feffff;
    text-align: center;
    line-height: 142px;
    text-transform: capitalize;
}
.coo_par_cen li:hover .par_img_m{
    display: block;
}