.equipa_overlay{
    top: 0;
    background-color: rgba(0, 0, 0, 0);
    -webkit-transition: all 0.4s;
    transition: all 0.4s;
}
.equipa_overlay:hover{
    background-color: rgba(0, 0, 0, 0.5);
}

.equipa_overlay:hover .opacity-zero{
    opacity: 1;
}