body,
html {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    margin: 0;
    padding: 0;
    background-color: #FFF;
    font-family: sans-serif;
    font-weight: normal;
    font-size: 14px;
    color: #000;
    line-height: 1;
}

*,
*:before,
*:after {
    font-family: inherit;
    user-select: none;
    box-sizing: border-box;
}

img {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
}

main {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 800px;
    height: 100%;
    margin: auto;
    padding: 1rem;
}

.youtube-embed {
    display: block;
    width: 100%;
    height: auto;
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.youtube-embed iframe {
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    border: 0;
}