Find element that is causing the showing of horizontal scrollbar in Google Chrome

Question

When I size my Chrome window to 328 x 455 pixels I still see a horizontal scrollbar. How can I find out which element is causing this? I\'ve been looking elements via the de

Answer 1

Adding a border to everything made the problem go away for me. The culprit was a drop-down menu hidden with opacity: 0. I actually found it by process of elimination - delete elements in the DevTools one by one, starting with parent elements and moving down the tree.

This would have done it for me:

* {
  opacity: 1 !important;
  visibility: visible !important;
}