1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 2 "http://www.w3.org/TR/html4/strict.dtd"> 3 4<b>This should have a p tag</b> 5 6<!--This is a comment --> 7 8<div>This shouldn't</div> 9 10<?php echo "block_level";?> 11 12 <?php echo "not_block_level";?> 13 14