SEO Impact of Bootstraps visible - lg/md/sm/xs - classes

I was wondering if anyone knows about the SEO impact of using bootstraps visible classes for creating a responsive website? I have created a new website with Bootstrap using these classes. On most of the pages the main content is on the left and then there are a number of links on the right side of the page. My structure is like this:

<div class="row">
    <div class="col-lg-6 col-md-6 col-sm-12 col-xs-12">
        //Main content here on left of page
    </div>

    <div class="col-lg-6 col-md-6 visible-lg visible-md">
        //Content on right of page for large and medium devices
    </div>

    <!--SMALL STARTS HERE-->      
    <div class="col-sm-12 visible-sm">
        //Same content on right of page for small devices
    </div>

    <!--EXTRA SMALL STARTS HERE-->    
    <div class="col-xs-12 visible-xs">
        //Same content on right of page for extra-small devices
    </div>
</div>

So my question is if this is a bad idea or not? I am worried that Google/Bing/Yahoo will see this as duplicate content on my pages and penalise me for it. Is this an issue I should be worried about? Thanks.