chrome extension reference css file from content sccript code example

Example 1: chrome extension add stylesheet to page

//Add this to manifest.json

"content_scripts": [
   {
      "matches":    ["http://www.google.com/*"],
      "css":        ["stylesheet.css"],
   }
],

Example 2: chrome extension inject html

$.get(chrome.runtime.getURL('/template.html'), function(data) {
  
    $(data).appendTo('body');
  
});