.generating-dots .dots::after {
    content: '';
    display: inline-block;
    animation: dots 1.5s steps(3, end) infinite;
    width: 1ch;
    overflow: hidden;
    vertical-align: bottom;
}

@keyframes dots {
    0% {
        content: '';
    }

    33% {
        content: '.';
    }

    66% {
        content: '..';
    }

    100% {
        content: '...';
    }
}