Reply To: Which element is causing the horizontal scroll?

[Senff]

What do you use to check 320-wide screens?

http://www.senff.com/front-end/you-already-have-a-retina-screen-emulator/

Chrome won’t reduce to that size BUT you can use Firefox (which will) or the Chrome Developer tools to emulate a screen that size.

Huh? Of course it does. The smallest window I can make with Chrome is 249 pixels wide.