.footer-facebook{
    width:100%;
    margin-top:20px;
}

.facebook-box{
    position:relative;
    display:block;
    overflow:hidden;
    border-radius:8px;
}

.facebook-box img{
    display:block;
    width:100%;
    height:auto;
    transition:.4s;
}

.facebook-overlay{
    position:absolute;
    inset:0;
    background:rgba(0,0,0,.45);
    display:flex;
    justify-content:center;
    align-items:center;
    opacity:0;
    transition:.35s;
}

.facebook-btn{
    background:#1877f2;
    color:#fff;
    padding:12px 28px;
    border-radius:40px;
    font-size:16px;
    font-weight:600;
    transform:translateY(20px);
    transition:.35s;
}

.facebook-box:hover img{
    transform:scale(1.05);
}

.facebook-box:hover .facebook-overlay{
    opacity:1;
}

.facebook-box:hover .facebook-btn{
    transform:translateY(0);
}