I built a hello world app with a separate css file for the color of the background and size of a div and when I get my cocoonJS app it's all black.
Does CocoonJS support css/css3 or does it only support css3d?
For instance, being able to embed Bootstrap would be very useful.
Here you have a working demos list: https://cocoonjsservice.ludei.com/cocoonjslaunchersvr/demo-list/ It includes actually everything what cocoonjs can do. What you need is the webView demo where you can see how they handle the external css file: http://storage.cocoonjsservice.ludei.com/demos/cjs8336823350010472889Webview.zip You can also simply install the cocoonjs launcher from the app store and click Demos to have a quick look what they actually do :)