Row width not 100%

All my row widths are do not stretch to the corners of my screen. Tried putting width: 100%; on css but it doesnt work. Do you have a clue why it’s doing this?

Hi,

Please make sure you choose a “Full width” or “Front page” template for your page attributes. You can check it when you go to: Edit page > Page attribute (the option are located on the right side)

Regards,
Awan