.crt{

    height: 100vh;
    width: 100vw;

    content:' ';

    display:block;
    position:absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    
    background: linear-gradient(rgba(111, 0, 255, 0.151) 50%, rgba(0, 11, 94, 0.568) 50%), linear-gradient(90deg, rgba(0, 247, 255, 0.336), rgba(0, 0, 255, 0.459), rgba(0, 0, 83, 0.24));

    z-index: 100;
    background-size: 100% 2px,3px 100%;
    pointer-events: none;

    mix-blend-mode:hard-light;
    opacity: 0.45;

}