XF 2.1 How to setup % for forum width?

[shanew]

Hello,

I setup 94% in Maximum page (in Page setup in Appearance> Styles > Default Style > Style properties)width and it works as well on Desktop but it has a small problem when viewing on mobile devices (it didn't fit 100% on mobile)

How to use % for forum width of Xenforo forum?

Thanks

 

[shanew]

Anyone knows?