Awhile back I had asked for some help placing a logo

Awhile back I had asked for some help placing a logo in the header area of a free theme I'm using. You recommended plugin Custom CSS and gave me the code. Everything worked. But now, over time, I must have made a change that killed the original solution and I can't figure it out. Here is the thread with the original code you gave me. https://premium.wpmudev.org/forums/topic/how-do-i-move-the-header-to-the-title-area

The logo should be in the red area, not on top of it. aristoncommercial.com

I will open up support access also.