I have set up a codepen to demonstrate my problem
http://cdpn.io/AxyDg
So each of the .excerpts is set to width: 50% using scss variables. the browser is rounding up the width so they are slightly bigger than 50% and therefore the display: inline block isnt working as I want it. If I change the scss variable multiplier to something slightly less lik 7.8 for example it works as I want it but it dosnt line up exactly with the grid anymore. Is there a better solution than just changing the multiplier value?