.document .videoLinkYouTube {
    position: relative;
    display: block;
    width: 100%;
    height: 0;
    margin: var(--document_block_size_margin) 0;
    padding-bottom: 56.25%;
    border-bottom: none;
    transition: 0;
}
.document .videoLinkYouTube:first-child {
    margin-top: 0;
}
.document .videoLinkYouTube:last-child {
    margin-bottom: 0;
}
.document .videoLinkYouTube:hover {
    border-bottom: none;
    transition: 0;
}

.document .videoLinkYouTube img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    border: none;
    object-fit: cover;
}

.document .videoLinkYouTube > .explanation {
    z-index: 1;
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: var(--document_block_size_padding);
    font-weight: var(--document_general_font_semi_bold);
    color: #ffff;
    background-color: #8888;
    text-shadow: 0 0 4px #000f;
    opacity: 0;
    transition-property: opacity;
    transition: 0.25s;
}
.document .videoLinkYouTube > .explanation:before {
    content: 'Click to play on YouTube [';
}
.document .videoLinkYouTube > .explanation:after {
    content: ']';
}
.document .videoLinkYouTube > .explanation:hover {
    opacity: 1;
    transition-property: opacity;
    transition: 0.25s;
}

@media print {
    .document .videoLinkYouTube {
        break-inside: avoid;
    }
    .document .videoLinkYouTube > .explanation {
        opacity: 1;
        transition-property: opacity;
        transition: 0;
    }
    .document .videoLinkYouTube > .explanation:before {
        content: '';
    }
    .document .videoLinkYouTube > .explanation:after {
        content: '';
    }
}