CSS: Control space between bullet and

Put its content in a span which is relatively positioned, then you can control the space by the left property of the span.

li span {
  position: relative;
  left: -10px;
}

<ul>
  <li><span>item 1</span></li>
  <li><span>item 2</span></li>
  <li><span>item 3</span></li>
</ul>