body {
    overflow: hidden;
    margin: 0;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#zh_cn {
    font-size: 30px;
    display: inline-block;
    padding: .3em;
    font-family: 'Megrim', cursive;
    position: absolute;
    top: 45%;
    left: 50%;
    user-select: none;
    transform: translate(-50%, -50%);
    color: rgba(255, 255, 255, .68);
    animation: flash 0.5s linear infinite;
}

#en {
    font-size: 20px;
    display: inline-block;
    padding: .3em;
    font-family: 'Megrim', cursive;
    position: absolute;
    top: 50%;
    left: 50%;
    user-select: none;
    transform: translate(-50%, -50%);
    color: rgba(255, 255, 255, .68);
    animation: flash 0.5s linear infinite;
}


@keyframes flash {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}