Read up on your HTML skills. A tab has no meaning in HTML and will be ignored by readers anyway. Don't use it, it will never work.
If you want an indent, define it in your stylesheet, e.g.:
Code:
p.indent {text-indent: 1.2em;}
. In your HTML you can then have
Code:
<p class="indent">This will be indented."</p>
. Of course, if your base is that all paragraphs should be indented, you can just set the text-indent on the paragraph tag.