all.css

.vshare {
    aspect-ratio: 16/9;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

div.vshare {
    box-sizing: border-box;
    border: 1px solid __border__;
    cursor: pointer;
    background-image: url(video.svg);
    background-position: top left;
    background-repeat: no-repeat;
    background-size: 5em 5em;
}

iframe.vshare__left,
div.vshare__left {
    float: left;
    margin-right: 1em;
}

iframe.vshare__right,
div.vshare__right {
    float: right;
    margin-left: 1em;
}

iframe.vshare__center,
div.vshare__center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

iframe.vshare__none,
div.vshare__none {
    margin: 1px 3px 1px 3px;
}