Issues on iPhones

I have used standard BSS components in a new website and it displays without any issues in browsers (other than Apple's Safari!) on my Windows desktop and Android phone. However, I'm told that they do not do so on iPhones. Is there a 'general' fix for this?

What is the issue exactly?

The main problem is with columns being displaced to one side. When using the standard 'Team Boxed' component with three columns, for example, only one of the three columns is visible and is pushed to the extreme right of the XS screen.

Ok can you share a snippet of your code for us to review ?

Also are you using BS3 or BS4?