.crt{
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(rgba(18, 16, 16, .97), rgba(18, 16, 16, .97)),
        url("dirt.webp") repeat;
    background-size: auto, 192px 192px;
    background-color: #121010;
    animation: crt-turn-on 1.2s ease-out both;
}

.crt::before,
.crt::after{
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.crt::before{
    z-index: 2;
    background:
        linear-gradient(transparent 50%, rgba(0, 0, 0, .28) 50%),
        linear-gradient(90deg, rgba(255, 0, 0, .05), rgba(0, 255, 0, .02), rgba(0, 0, 255, .05));
    background-size: 100% 3px, 4px 100%;
}

.crt::after{
    z-index: 3;
    background: rgba(18, 16, 16, .12);
    opacity: 0;
    animation: crt-flicker .15s infinite;
}

.crt > *{
    position: relative;
    z-index: 1;
}

@keyframes crt-flicker{
    0%, 100% { opacity: 0; }
    10% { opacity: .12; }
    20% { opacity: .03; }
    30% { opacity: .16; }
    40% { opacity: .02; }
    50% { opacity: .08; }
    60% { opacity: .01; }
    70% { opacity: .14; }
    80% { opacity: .04; }
    90% { opacity: .1; }
}

@keyframes crt-turn-on{
    0%{
        transform: scaleY(.01);
        filter: brightness(8);
        opacity: 0;
    }
    35%{
        transform: scaleY(.01);
        filter: brightness(5);
        opacity: 1;
    }
    60%{
        transform: scaleY(1.05);
        filter: brightness(2);
    }
    100%{
        transform: scaleY(1);
        filter: contrast(1.05) brightness(1.1) saturate(1.1);
        opacity: 1;
    }
}