Error with post in the pages

Why my post don’t fit the grid? Normaly it should fit at least 2 articles per row, not it only fits 1. Here is my website address: http://storyhills.com

Hi

I’ve checked your site and it’s displayed fine on my side: http://screencast.com/t/eMwcSTZy If you still have this issue make sure browser’s zoom settings are set to default or to a value higher then 100%.
Let me know how it goes and if you still can’t manage to solve this please provide more specific details about this issue so I can duplicate it on my side, also a screen pointing to it would help.

Thanks!