viewing website in full width

[colsmith999]

how do i get my website pages to expand to the full width of the browser window when the window is maximised?

I have the default width of my pages set to 1200 px but in chrome for example (and edge for that matter) when the browser window is maximised there are voids either side of the web pages.

How do i fix this so that when the pages are viewed in browsers the web pages fill the entire browser window?

[Pablo]

To learn more about flexible/floating layouts please see this related tutorial:
http://www.wysiwygwebbuilder.com/layout_modes.html