style.css

html, body, #content {
    margin: 0;
    padding: 0;
    background: linear-gradient(113deg, hsla(297, 20%, 18%, 1), hsla(241, 44%, 13%, 1));
    color: #e4e1e5;
    font-family: sans-serif;
    height: 100vh;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1em 0;
    display: flex;
    justify-content: center;
}

footer a {
    text-decoration: none;
    color: #958a99;
    font-size: 0.8rem;
    margin: 0 1em;
}

#content {
    display: flex;
    align-items: center;
    justify-content: center;
}

@media only screen and (max-width: 600px) {
    #content {
        flex-direction: column;
    }
}

.record:hover {
    box-shadow: 4px 4px 11px 1px #0000009e;
}

.record {
    display: grid;
    box-shadow: 2px 2px 11px 1px #0000009e;
    width: 100vw;
    max-width: 450px;
    transition: box-shadow, max-width 0.6s ease;
    margin: 0 1em;
}

.record.active, .record:hover {
    max-width: 500px;
}

div.overlay {
    transition: opacity 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.record.active.playing div.overlay, .record div.overlay {
    opacity: 0;
}

div.overlay > div {
    width: calc(100% - 2 * 1em);
    padding: 1em;
}

.record.active div.overlay {
    opacity: 1;
}

.record:hover div.overlay, .record.active:hover div.overlay {
    opacity: 1;
}

.record img, div.overlay {
    grid-column: 1;
    grid-row: 1;
    width: 100%;
}

.record > div.overlay:first-of-type {
    background: #0000008a;
}

.overlay.play {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
}

.record h1, h2, h3 {
    justify-self: flex-start;
    align-self: center;
    margin-bottom: 0;
    margin-top: 0;
}

audio {
    display: none;
}

.playbar {
    display: flex;
    justify-content: space-between;
}

.overlay.play .playstate {
    font-size: 60px;
}