Nupur Agrawal
I discussed with mauricio about how to start and implement the things and we decided to implement grid structure for all the pages first.
So I started with the login page and home page and got it worked out there.
-> https://github.com/phpmyadmin/phpmyadmin/pull/15298
->https://github.com/phpmyadmin/phpmyadmin/pull/15299
The main idea was to apply container class to the page_contents and then apply row and the col classes to the different element that it contains.
This will make the pages more responsive according to the different sizes and also, there will be no need to provide the elements css properties like padding, margins as the structure handles that part efficiently.