var element

Then he turned to the blackboard and picked up the chalk. After a few moment's thought, he wrote E = m c². The teacher looked pleased.

Code

<p>Then he turned to the blackboard and picked up the chalk. After a few moment's thought,
he wrote <var>E</var> = <var>m</var> <var>c</var>². The teacher looked pleased.</p>

Reference

HTML5 var element