I have created a pen here : source code . This page is a basic two-column layout: a very simple page, with some text formatted on a white background
The left column with class=“announcement” is having a right margin of 600px and the right column with class=“main” is floated right. I was expecting that the right margin on the left column would push the right column. However, it does not seem to do so. Instead, the right column just seamlessly appear on top of the margin of the left column.
What is it that I am missing ?