.overlay {
    width: 100%;
    height: 100%;

    position: fixed;
    left: 0;
    top: 0;

    object-fit: cover;

    pointer-events: none;
}

.overlay--noise {
    mix-blend-mode: soft-light;
    opacity: 0.4;
}

.overlay--crt {
    mix-blend-mode: overlay;
    opacity: 0.4;
}

.overlay--screendust {
    mix-blend-mode: color-dodge;
    opacity: 1;
}

.overlay--vignette {
    mix-blend-mode: normal;
    opacity: 0.5;
}

.overlay--monitor {
    mix-blend-mode: normal;
    opacity: 1;
}