Single column template breaks when you switch sidebar to left

Yes. If you switched the sidebar to the left using our css trick, the single column templates will no longer work correctly. What no sidebar? Yes, we’ve chosen to hide it when we created this page to illustrate the point.

To fix this you need to adjust the need margin like so:

.one-column #content {
margin: 0 -100px;
}

Or thereabouts.