Is it possible to change the font for the 'feature' section?

Hi there,

I am fairly new at this however have been through a few themes now and finally found one that suits us. I am struggling however to get one part right.

I have attached two screen shots to hopefully make this easier. On our home page (the one of the left) there is a section above the main area that shows a feature article. For the life of me I cannot figure out how to change this. I have gone into appearance > custom styling and changed the font and the colours however it still does not change it here.

The second screen shot (the one on the right) shows this specific blog and all the font and colours are correct.

Any ideas how to get this to change to the correct font on the home page?