.osm {
    width: 100%;
    height: 350px;
    text-align: center;
    color: white;
    background-color: transparent;
    position: relative;
}
.hl {
    width: 100%;
    height: auto;
    text-align: center;
    aspect-ratio: 1.8;
    color: white;
    background-color: transparent;
    position: relative;
}
.hidden {
    display: none;
}

.visible {
    display: block;
}
.iframe-div {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: fit-content;
    transform: translateY(-50%);
}
.iframe-btn {
    background-color: transparent;
    color: white;
    border: 2px solid white;
    border-radius: 0.5em;
    margin: 0.5em 0 0.5em 0;
    padding: 0.2em 1em 0.2em 1em;
}
    .iframe-btn:hover {
        opacity: 0.8;
    }
.iframe-img {
    width: 100%;
    height: 100%;
    opacity: 0.3;
    object-fit: cover;
}