First X pixels from left buttons are not changing style when clicked


I have problem that no matter in which container (header,footer,content) buttons are located when clicked, if they are aligned to left side of screen, they are not changing style (click function triggers) for first 20-40 pixels of screen left side.

-----------------------screen -----------------------------------
| |--------button--------|
| |xxx |
| |xxx |
| |-------------------------|

xxx-no style change when clicked on this part but triggers function correctly

Anyone with same issues ?