I am new to using Bootstrap Version 3 an I am trying to change the default navbar color of the Bootstrap Yeti theme, http://bootswatch.com/yeti/, for my ASP web application in VS 2013. I downloaded the bootstrap.css and bootstrap.min.css files and copied them to my project.
I want to change the navbar background color to green: 93c951 and the navbar text to blue: 0f74bc.
I have followed the instructions here Change navbar color in Twitter Bootstrap 3 for the correct answer but the navbar color remains the same when I change the .navbar-default colour settings among other navbar setting changes. I make the changes to the bootstrap.css file under the Content folder that was made when I created my Visual Studio Web Forms application.
What do I need to do to make these changes?
Site.Master
<!DOCTYPE html>
<html lang="en">
<head runat="server">
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title><%: Page.Title %> - Ecoline</title>
    <asp:PlaceHolder runat="server">
        <%: Scripts.Render("~/bundles/modernizr") %>
    </asp:PlaceHolder>
    <webopt:BundleReference runat="server" Path="~/Content/css" />
    <link href="~/favicon.ico" rel="shortcut icon" type="image/x-icon" />
</head>
 
     
    