#starfield {
    position: fixed;
    width: 100%;
    height: 100%;
    mix-blend-mode: lighten;
    pointer-events: none;
    opacity: 1;
    transition: 0.5s opacity;
}
#starfield.slow {
	transition: 2s opacity;
}
#starfield.hidden {
    opacity: 0;
}

.no-anim #starfield {
	display: none;
}