Board Thread:Support Requests - Getting Technical/@comment-31141775-20170129102325

I'm using this code:

< mainpage-leftcolumn-start />

Two templates here

< mainpage-endcolumn />

< mainpage-rightcolumn-start />

two temlplates here

< mainpage-endcolumn />

But the columns don't separate at all. What am I missing? Thanks is advance. 