MyBB Community Forums

I have emerald theme on my forum. When i load page on my mobile, it doesnt show "login" button. 
Where can i edit mobile look of my forum?

Themes dont particularly have seperate styles for different devices. The theme files for your regular site will also determine how the site is handled on a mobile device. So you will just need to edit the template normally regardless of the device type.

---

You should have a good understanding of CSS forst and then find out why the theme would be 'hiding' the login button on devices with small screens.

I don't think Emerald is responsive design, my suggestion to add a login and register link inside header template
Admin CP > Templates and Styles > Templates > Emerald Template > Header Template > header

Regards
WallBB