we're going to use the delete tag (<del>) to put a line through writing like this

1. write something you want to put a line through
   Where did that line come from?
2. write this round it:
   Where did that <del>line</del>come from?
3. save the code and open the page in a browser
   you'll see this:
   
   Where did that line come from?

more tutorials to try

you might like to try these tutorials too:

• how to move text and pictures
• how to make text appear when you hover over something (tool tips)