#binary-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

#binary-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            black 0%,
            transparent 15%,
            transparent 85%,
            black 100%);
    pointer-events: none;
    z-index: 1;
}

.binary-column {
    position: absolute;
    top: -20vh;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    color: rgba(255, 255, 255, 0.15);
  
    white-space: pre;
    writing-mode: vertical-rl;
    text-orientation: upright;
    animation: binary-fall linear infinite;
    user-select: none;
    letter-spacing: 4px;
    z-index: 0;
}

@keyframes binary-fall {
    from {
        transform: translateY(-200px);
    }

    to {
        transform: translateY(120vh);
    }
}