I'm trying to create two columns: one for my sidebar and one for the main content but rather than appearing side-by-side, one is appearing beneath the other and overlapping as I add content.
<div class="container-fluid">
<div class="row">
<div class="col-sm-3">
<asp:ContentPlaceHolder ID="sideNavContents" runat="server">
</asp:ContentPlaceHolder>
</div>
<div class="col-sm-9">
<asp:ContentPlaceHolder ID="bodyContents" runat="server">
</asp:ContentPlaceHolder>
</div>
</div>
</div>