.crt::before {
    content: " ";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
                    
    background: 
    linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%), 
    linear-gradient(90deg, 
    rgba(255, 0, 0, 0.06), 
    rgba(0, 255, 0, 0.02), 
    rgba(0, 0, 255, 0.06));
    z-index: 2;
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
    }

      @keyframes flicker {
          0% {
        opacity: 0.27861;
        }
          5% {
        opacity: 0.34769;
        }
          10% {
        opacity: 0.23604;
        }
          15% {
        opacity: 0.10626;
        }
          20% {
        opacity: 0.18128;
        }
          25% {
        opacity: 0.10626;
        }
          30% {
        opacity: 0.18128;
        }
          35% {
        opacity: 0.23604;
          }
        }
                

  .crt::after {
    content: " ";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: rgba(18, 16, 16, 0.1);
    opacity: 0;
    z-index: 2;
    pointer-events: none;
    animation: flicker 0.15s infinite;
                  }