.crewman_item .crewman_descr {
    opacity: 1;
}

.crewman_item .crewman_descr .crewman_descr_cont {
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    opacity: 0;
    transform: translateY(-100%);
    -o-transform: translateY(-100%);
    -ms-transform: translateY(-100%);
    -webkit-transform: translateY(-100%);
    transition: all 0.5s ease-in-out;
    -webkit-transition: all 0.5s ease-in-out;
}

.crewman_item .crewman_descr .crewman_descr_cont {
    opacity: 1;
    transform: translateY(-50%);
    -o-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    -webkit-transform: translateY(-50%);
}