body {
    opacity: 0.8;
    background-color: #000;
    background-size: 28px 28px;
    background-position: 0 0, 14px 14px;
    background-image: radial-gradient(#69f745 0.7000000000000001px, transparent 0.7000000000000001px), radial-gradient(#69f745 0.7000000000000001px, #000000 0.7000000000000001px);
}