.features-banner-cover {
    position: relative;
    display: inline-block;
}
.zoom-icon {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0, 0, 0, 0.6);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease;
    box-shadow: 0 6px 18px rgba(0,0,0,0.25);
}
.zoom-icon:hover {
    transform: translateY(-3px);
    background: rgba(0, 0, 0, 0.75);
}
.zoom-icon i {
    color: #fff;
    font-size: 18px;
}