.back-text{
    left: 8%;
}
.serificate{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    list-style: none;
    margin-bottom: 50px;
}
.serificate-item{
    width: 23%;
}
.footer{
    background-color: #f9f8f4;
}
.dops-banner-butt2{
    position: absolute;
    bottom: 0;
    right: 0;
    z-index: 999;
}
.serificate-item a{
    position: relative;
    background: #fff;
    display: inline-block;
    height: 100%;
}
.serificate-item a:before{
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
}
.serificate-item a:hover:before{
    z-index: 2;
}
.serificate-item a:hover:after{
    z-index: 2;
}
.serificate-item a:after{
    content: "";
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    background-color: #eb000d;
    background-position: center center;
    background-image: url(../img/arr.png);
    background-repeat: no-repeat;
    position: absolute;
    left: 50%;
    margin-left: -24px;
    top: 50%;
    margin-top: -24px;
}