Theme not working in IE

Hello! We currently host an internal company blog for our organization (not associated with this username.)

We decided it was time to change themes and chose Verbosa. However, the theme does not render properly at all when using Internet Explorer. It looks correct on Chrome, Firefox, etc. just not IE.

Is this a common problem? Is there a fix for this? Perhaps a piece of code, etc. that I can relay back to our developers.

Thank you!
Megan