Tabs.Position

[AlonCG]

Hello, I am trying to set the position on a tab ... I would like them to be on the left.

I am using BootStrap 3, and there does not seem to be a "Position" setting on the Tabs class. I am defining the tabs as such:

var tabs = Html.Bootstrap().Begin(new Tabs("registerClientTabs"))

What am I doing wrong? How can I get the tabs on the left?

Thanks!