Reveal component won't center inside of a grid column

[tommytompkins]

I asked this question on Stack Overflow but I figured I'd report this here in case it happens to be an issue with the component. Is this an issue or am I doing something wrong?

http://stackoverflow.com/questions/37501447/what-is-the-best-way-to-center-a-reveal-component-inside-a-grid-column-in-sema

Thank you in advance!