Hey @santee-yong

please check our guides here:
https://support.appdrag.com/doc/Introduction-to-responsive-concepts
https://support.appdrag.com/doc/Adjust-margins-and-paddings-for-mobile
https://support.appdrag.com/doc/Show-and-Hide-elements-for-some-devices
https://support.appdrag.com/doc/Responsive-font-size