The resize button in the bottom right corner.

[a_5mith]

What's it used for? Other than to make the page narrower?

[baris]

Thats just it, it toggles between fluid and fixed width layout.

[a_5mith]

@baris Thought so. Cheers.

[zenkamal]

@baris Is there a way to keep the max width boxed instead of the width stretching out to the screen edges? Sometimes mine defaults to boxed and sometimes to wide (is boxed==fixed and wide==fluid?). I'd like it to stay boxed when the window is maximized and be fluid when the window is made narrow.