Home Page Justified to the Left Only in Explorer

After making some changes to my site–taking out the Home Feature Image and adding an Easing Slider, my homepage is justified all the way to the left, but only in Internet Explorer. No other pages are effected. And it looks completely fine in any other browser.

Here is my site: http://www.oneinahundredprogram.com

Would appreciate any suggestions on how to fix this!

Thanks so much!