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Vanilla theme
udawwa
New
Comments
You need a working knowledge of HTML and CSS to create a Vanilla theme. This looks like basic CSS issues. If this is a 2.0 theme you downloaded and your issue came after a 2.1 upgrade, it looks like you'd need to talk to the theme's author about making a 2.1-compatible version. You'll need to revert to Baseline in the meantime.
You can add
#Body .ContentColumn { margin: 0 !important; }
to your custom.css for the theme and it should work.
I'd recommend you spend some time on w3schools to learn CSS http://www.w3schools.com/css/ and employ a tool like Chrome developer tools or Firebug in Mozilla.
Good luck
I can't fix. Finally I install vanilla previous version