Answers for "auto scroll bottom css"

scroll start from bottom css

.container {
  display: flex;
  flex-direction: column-reverse;
}

javascript auto scroll on bottom

const scrollToTop = () => {
  const scrollTopButton = document.getElementById('scrollTopButton');

  scrollTopButton.addEventListener('click', () => {
    window.scrollTo(0, document.body.scrollHeight);
  });
};