title: CSS changes on MVC App not working
body: <p>I created an MVC app using VS Express for web.  It it will only use the default built in CSS file that VS Express comes with.<br>
  Example:  If I modify the bootstrap.css file (change jumbotron color), and run locally from VS, the changes are apparent, however when i web deploy, none of those changes are apparent.  I also noticed when I modify the web.config file to Debug=false, the CSS changes I've made are not apparent when I run it locally from VS (and on web deploy).  </p>
  
  <p>CSS is still being applied, however any changes I make are not applied.  The site shows the old default jumbotron color.  If I change debug=true in the web.config then the jumbotron shows my updated color.  When I web deploy my site none of the CSS changes are applied, it still uses the default CSS file, I even checked bootstrap.css on the server and it shows the updated jumbotron color, but the jumbotron is still the default color on the web??  Super confusing.</p>
  
  <p>I have done a lot of reading, tried adding the following to my web.config:</p>
  
  <pre><code>&lt;remove name="BundleModule" /&gt;
  &lt;add name="BundleModule" type="System.Web.Optimization.BundleModule" /&gt;
  </code></pre>
  
  <p>but that doesnt fix it.  I tried removing .css from my file names, this fixed the problem when I run it locally from VS using debug=false, however when I publish the website the site shows no CSS styles at all.  It is not a caching issue.  It is something to do with bundling and debug=false, but I do not know what.  I am still quite new to web/MVC development.  I've updated my web.optimization and microsoft.aspnet, etc with NuGet.</p>
  
  <p>I am having a really hard time with this, if anyone has a suggestion and it works I will be very happy!  There are lots of posts about this on Stack Overflow but none of the suggestions have worked for me yet.</p>
  
  <p>This is my bundle.config.cs:</p>
  
  <pre><code>using System.Web;
  using System.Web.Optimization;
  
  namespace HFHYYC
  {
          public class BundleConfig
          {
  
          public static void RegisterBundles(BundleCollection bundles)
          {
              bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
                      "~/Scripts/jquery-{version}.js"));
  
              bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include(
                      "~/Scripts/jquery.validate*"));
  
              bundles.Add(new ScriptBundle("~/bundles/modernizr").Include(
                      "~/Scripts/modernizr-*"));
  
              bundles.Add(new ScriptBundle("~/bundles/bootstrap").Include(
                    "~/Scripts/bootstrap.js",
                    "~/Scripts/respond.js"));
  
              bundles.Add(new StyleBundle("~/Content/css").Include(
                    "~/Content/bootstrap.css",
                    "~/Content/site.css"));
          }
      }
  }
  </code></pre>