.titl {
    text-align: center;
}

.bb {
    padding-top: 10px;
    margin: auto;
    width: fit-content;
    position: relative;
}

.bb img.main-img {
    display: block;
    max-width: 100%;
    height: auto;
}

.hover-img {
    padding-top: 10px;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    display: none;
    pointer-events: none;
    z-index: 10;
}

.hover-img.active {
    padding-top: 10px;
    display: block;
}

body {
    background-image: url(bgg.png);
}