@keyframes blink {
    0%,
    to {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

#webgl {
    position: relative;
    z-index: -1;
}

#webgl canvas {
    margin-inline: auto;
}

.bg {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
    background: url(../images/bg.jpg) no-repeat center center/cover;
    opacity: 0.2;
}

.contents {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
}

h1 {
    display: block;
    width: 100%;
    text-align: center;
    font-size: max(10vw, 3rem);
    color: #c9d5ff;
    mix-blend-mode: difference;
    opacity: 0.9;
}