Site is aligned left

Hi guys,

I’m new to the whole wordpress thing and I’ve just started creating the basics of the site.

I’ve setup a network and installed a theme. After installing, the whole of the main site became left aligned (menu bars & content) but it hasn’t affected the sub sites.

I’ve changed themes to another paid one which did the same thing, yet the standard wordpress ones seem fine.

Not sure how I can get my site back in the centre so your help would be much appreciated.

I’m currently using a Tersus theme,
Main site (aligned left): https://c2dj.com/
Sub site of the network (aligned centre): https://c2dj.com/csquared/

Many thanks,
Chris