Align center in Hueman

Dear Bdbrown , thanks a lot for such a nice support. If you are there or anyone ,please help me out to do this .

Bdbrown you gave a code by which we can ad widget area between posts.
i.e. code for :
Featured post
post|post
widget1
post|post
post|post
widget2
post|post

and you gave its css code :

#my-widget {
float:left;
  }

I want to align widget content in center. I removed ‘float:left;’ and put ‘text-align: center;’

But after adding this my widgets hide. That did not work.

So, please help me to align widget content in center.

Thanks,