.main-like-btn{
    position: absolute;
    top: 0px;
    left: 0px;
    font-size: 18px;
    transition: all .2s ease-out;
    opacity: 0;
}
.overlay-thumb:hover .main-like-btn{
    top: 10px;
    left: 10px;
    opacity: 1;
}

@media only screen and (max-width: 600px) {
    .main-like-btn{

    }
}