Hi GBSimon,
Thanks for your comment, I’m glad you found the article useful. I’ve looked into your demo. To have the columns in the Jumbotron swap, you need to use BS .col-md-push-* and .col-md-pull-* classes. As for the navigation, you need to add a background-color to .navbar-toggle .icon-bar. Here’s a revised Pen: codepen.io/antonietta/pen/WxwQNb.
However, as I pointed out in the previous message, if you have queries that are unrelated to the article, please open a new thread. Cheers!