visual studio code comment every line containing code example

Example 1: vscode comment block of code html

********** For Mac **************
-> How to comment a block?
  
Command + K + C


-> How to uncomment a block?
  
Command + K + U

Example 2: how to comment multiple lines in vscode

********** For Windows **********
-> How to comment a block?

CTRL + K + CTRL + C 

-> How to uncomment a block?

CTRL + K + CTRL + U