Hi mates, I v built a website but don,t know how tu ajust ruller,1 side apears blank. website: www.pcdetailing.co.uk thanks in advance

Please read our Forum Guidelines about how to add a post to this forum.
https://www.wix.com/corvid/forum/community-discussion/corvid-community-guidelines

Also, you are posting on the Wix Corvid Forum that deals with all code related issues on your site and it sounds like your issue is not code related and can be dealt with through Wix Support.
https://support.wix.com/en/article/contacting-wix-support