html {
    -ms-touch-action: none;
}

body,
canvas,
div {
    display: block;
    outline: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}

body {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    cursor: default;
    text-align: center;
    font-family: Helvetica, Verdana, Arial, sans-serif;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin: 0;
    padding: 0;
    color: rgba(255, 255, 255, 0.87);
    place-items: center;
    min-width: 320px;
    min-height: 100vh;
    background-color: black;
}

#loading-animation {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: block;
    width: min(30vmin, 220px);
    height: min(30vmin, 220px);

    animation: pulse 1.6s ease-in-out infinite;
    transform-origin: center;
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.85;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.08);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.85;
    }
}