<kbd>Space</kbd> character for
indentation carries no semantic meaning&mdash;if you code this way your indentation schema may as well be a form of
<abbr title="American Standard Code for Information Interchange">ASCII</abbr> art. ;-)</p>

<h3>Heading level 3</h3>
<p>The
<del>slow</del>
quick brown fox jumped over the lazy dog. The
<ins>ins (insert)</ins>
element, unlike the dog cannot jump over anything, so it cannot span cross paragraph boundaries.
</p>

<p>This paragraph contains <s>outdated information</