.card_licitacion {
    width: 100%;
    min-height: 300px;
    position: relative;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    -webkit-transition: all 2s ease-in-out;
    transition: all 2s ease-in-out overflow: auto;
}

.card_licitacion:hover {
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg)
}

.card_licitacion>div {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: sans-serif;
}

.card_licitacion .front {
    z-index: 2;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden
}

.back_licitacion {
    z-index: 1;
    min-height: 300px;
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}