Tabs interaction

I saw an example of tabs that I really liked. Unfortunately, I did not bookmark the example and now can not find it. It was an example where 5 tabs were vertical on the left. When you pressed the tab, it slide over to the right and showed that step in the process. If anyone knows the example I am talking about, could you please share the link so I can look it over to figure out how they did it.  I really like to look and feel of it. 

Thanks!

Richard Batts 

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