section {
    padding-top: 50px;
    padding-bottom: 50px;
    min-height: 60vh;
}

.active-tile {
    position: absolute;
    width: 0;
    height: 100%;
    background-color: #dedede;
}

@media (max-width:991px) {
    .active-tile {
        height: 40px;
    }
}

header {
    position: fixed;
    right: 0;
    left: 0;
    top: 0;
    z-index: 1;
}

.responsive {
    width: 100%;
    height: 400px;
    object-fit: cover;
    object-position: bottom;
  }