Sub-theming Bootstrap Theme

I’ve encountered an issue, and I know what the problem is (at least I’m pretty sure I do), but I don’t know how to fix it.

I’ve created a sub-theme, and everything is working well, the only issue that I’m encountering at this point, is that the content is shoved clear up against/under the nav bar. I believe that the problem is, that it isn’t including the “CONTAINER” class around the content area. Which would seem like all that should be needed, is just adding the CONTAINER class to the DIV, However, when I use the inspector in Firefox, and look at the source code, the line reads:

<div class="main-container container">

which I believe is correct.

I’m attaching a picture showing the issue I’m having. Thank you in advance for your help.

Sample

Drupal version: 


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