<del> & <ins>
tag
<del> represents deleted text (strikethrough); <ins> represents inserted text (underline).
Syntax
<del>deleted</del> <ins>inserted</ins>
Example
html
<p>Price: <del>$19.99</del> <ins>$9.99</ins></p>
<p>Meeting on <del>Tuesday</del> <ins>Wednesday</ins> at 3pm.</p>