Meeting Registration Page incorrectly sized when using browser

Pointed out by our customers that the registration pages are now all sized for mobile devices even when using a browser.

If using a browser on your computer the registration link takes you to the webpage however it is sized for a mobile device. The mobile device sizing equates to the meeting description being truncated horizontally and the formatting is thrown way off. it is a really bad look. 

How do you fix this? It looks terrible and not very professional.