>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outdated information</s> as well as current information.</p>

<h4>Heading level 4</h4>
<p>The coordinate of the <var>j</var>th point is (<var>x<sub><var>j</var></sub></var>,
  <var>y<sub><var>j</var></sub></var>). For example