White spaces 'gaps' on homepage and sections showing larger in chrome

Hi,

I am using the Barberia theme and I have found my website doesn’t show correctly in the latest version of Google Chrome. When I view it on chrome there are huge gaps on the homepage as you scroll down and the sections on testimonials and opening times, the backgrounds are too big. I need to resolve the gaps and sizing. Is there any Css code or a script or even a plugin that can resolve this? The website is https://www.headrowdentalleeds.com

Thank you