.mentor-list {
    transition: all 0.6s;
}
.mentor-list .single-mentor:hover .social-overlay-list{
    opacity: 1;
}
.mentor-list .single-mentor:hover img{
    background-color: black;
    filter : brightness(50%);
    transition: all 0.6s;
}
.mentor-list .single-mentor .social-overlay-list{
    position: relative;
    top:-160px;
    background: rgba(0, 0, 0, 0);
    padding: 5px 10px;
    width:240px;
    opacity:0;
    transition: all 0.6s;
}
.mentor-list .single-mentor .social-overlay-list a i{
    color:white;
    width:50px;
    height: 50px;
    text-align: center;
    display: inline;
    transition: all 0.6s;
}
.mentor-list .single-mentor .social-overlay-list a:hover i{
    color: #bebebe;
    transition: all 0.6s;
}