In this particular text animation, we see how to style the del ins element so it looks like the del HTML tag is crossed out from the document using a red pen and the correction is written cross it. Designed by Mark Ostrander.
If you are having trouble with the pen, try the archived copy on GitHub
del ins element styling Snippet
See the Pen #codepenchallenge by Mark Ostrander (@ostranme) on CodePen.0