:root{
    --asdf: #f5f5f5;
    --miku: #00a1d6;
}

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: 'Roboto', sans-serif;
}

video{
    max-width: 80%;
    max-height: 80%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.bg{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--miku);
    opacity: 1;
}