Switch from a fixed to fluid style
In the admincp> Styles management
Select the style to modify and click " Variable style editor"
Looking> "wrapper_max_width"
Change px to %
Modify dimension: 1200 to 95
Your style it's now extended to 95% of your desktop.
Select the style to modify and click " Variable style editor"
Looking> "wrapper_max_width"
Change px to %
Modify dimension: 1200 to 95
Your style it's now extended to 95% of your desktop.
