<ol> tag vertical margin

https://groups.google.com/forum/#!msg/alt.html/UY5DTebmPe0/He0C7mqMBQAJ

HTML

<ol>
  <li>firstfirst</li>
  <li>second</li>
  <li>third</li>
</ol>

CSS

ol {
  display: inline-block;
  margin: 20px;
  padding: 20px;
}

ol li:before {
  counter-increment: numList;
  content: url('http://icons.iconarchive.com/icons/glyphish/glyphish/16/11-clock-icon.png');
  
  float: left;
  position: absolute;
  left: -5px;

  
  width: 18px;
  height: 18px;
  
}