howt to print 4 spaces in html code example
Example 1: add tabs html
<!-- 1 space -->
  <!-- tab; 2 space -->
  <!-- tab; 4 space -->
Example 2: adding space tab in html
<d style="padding-left:1em;" > </d>
<!-- 1 space -->
  <!-- tab; 2 space -->
  <!-- tab; 4 space -->
<d style="padding-left:1em;" > </d>