删除HTML列表项底部的额外空格

ul {
  margin: 0;
  padding: 0;
}

li {
  list-style-type: none;
}

const listItems = document.querySelectorAll('li');

listItems.forEach(item => {
  item.style.marginBottom = '0';
});

<ul style="margin: 0; padding: 0;">
  <li style="list-style-type: none;">列表项1</li>
  <li style="list-style-type: none;">列表项2</li>
  <li style="list-style-type: none;">列表项3</li>
</ul>