body {
            background-image:
                linear-gradient(to bottom, rgba(0, 255, 0, 0.25) 1px, transparent 1px),
                linear-gradient(to right, rgba(0, 255, 0, 0.25) 1px, transparent 1px);
            background-size: 100% 120px, 120px 100%;
        }
        
.grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;

    background-image:
        linear-gradient(to bottom, rgba(0, 255, 0, 0.25) 1px, transparent 1px),
        linear-gradient(to right, rgba(0, 255, 0, 0.25) 1px, transparent 1px);
    background-size: 100% 120px, 120px 100%;
}