Html5, Css3 quick notes shortcut keys

In writing HTML5+CSS3, it is necessary to add a comment for each module you write. When you need to modify it, you can quickly find the corresponding module. For novices to quickly add comments, you need to understand the following two quick comment shortcuts.
HTML5: Quick comment shortcut is Ctrl+/
CSS3: Quick comment shortcut is Ctrl+Shift+/
You can use the above shortcut keys under Sublime and Phpstorm. It may be the reason why the Emmet plug-in is installed in the above two editors, but under Notepad++ Entering the above two shortcut keys failed to realize the annotation function, and the Emmet plug-in is not installed under Notepad++.