I used to make an uncomment line as a commented one by these hot keys ctrl / but I don't know why recently I couldn't do that. as I try it my line changes from this:

 <div >

to this:

and in fact it doesn't changes to a comment line

anybody know how can I fix this problem?

CodePudding user response：

Make sure your HTML is selected on the status bar.

You can change it by, Ctrl Shift P and then Change Language Mode. Set to HTML.