Floating in Internet Explorer 11

Meery Christmas All,

I've just noticed a problem in IE with my project buttons where they are right aligned but left aligned in Chrome.

Can anyone help me try and fix this so it is also Left Aligned/Floated Left in Internet Explorer 11 please?

Thanks.

(It's the bottom projects when you press "load more" button)

http://testenvironment-wel.co.uk/sectors-we-work-in/commercial-offices/