Did you try changing the width of the viewport? Was there a visible change in the output?
No
Yes, but no visible changes
Yes, and there were changes
How many grid boxes do you see in the final output?
4
3
5
Why is the peachpuff colour assigned inside the left class selector not visible?
Because sidebar class is mentioned before the left class inside the HTML tag.
Because it is pushed out of the grid due to alignment.
Because it gets overridden by darkcyan inside the sidebar selector.
Were you able to get the desired Holy Grail layout?
Yes
Yes, but some grid items are not visible.
Yes, but it is out of alignment.
No