Icons on Feature section too big

Sorry – I cannot link the the page because I am currently using images instead of icons – the problem does not occur with images.

I have selected a 4 column option on the Features section and chosen icons from the Font Awsome choices. However, each icon is massive – on a full screen display, appearing in a single row, they touch the edges of the screen and touch each other. The icons also over lap the Content Titles.