I am using the twenty thirteen theme for my wp-page ( http://www.bilingual-ballet.com )and the search functions symbol (the little magnifier) from the sidewidget bar overlaps the main menu bar; on a Mac that is. On my PC and an Iphone it displays fine, but as soon as I open the page on a Mac, it overlaps.
Does anybody have an idea how to fix this?
ps. I wanted to add a screenshot for this problem, but somehow the computer didnt let me drag it in the post...