body {
    background-color: dodgerblue;
    margin: 0;
    overflow: hidden;
    font-family: sans-serif;
    color: white;
    transition-property: background-color;
    transition-duration: 4s;
}

canvas { width: 100%; height: 100% }

#stars {
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0.01;
    background-image: url("stars.png");
    transition-property: opacity;
    transition-delay: 1s;
    transition-duration: 4s;
    mix-blend-mode: hard-light;
}

#overlay {
    position: absolute;
    bottom: 2em;
    width: 100%;
    text-align: center;
    font-size: larger;
}