.celo-imgbox .imgbox-wrapper {
    position: relative;
}
.celo-imgbox .imgbox-wrapper * {
    color: #ffffff;
}
.celo-imgbox .imgbox-wrapper::before {
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(0,0,0,0.4);
    -webkit-transition: all .4s ease;
    transition: all .4s ease;
}

.celo-imgbox .imgbox-wrapper:active::before, .celo-imgbox .imgbox-wrapper:focus::before, .celo-imgbox .imgbox-wrapper:hover::before {
    background-color: rgba(0,0,0,0.8);
}
.celo-imgbox img {
    width: 100%;
}
.celo-imgbox .imgbox-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}