popup.html

<!doctype html>
<html>
  <head>
    <title>Quick Window</title>
    <script src="popup.js"></script>
    <style>
      html {
        background-color: #333333;
        border-left: 2px solid #FFFFFF;
        border-right: 2px solid #FFFFFF;
        color: #F2F2F2;
      }
      iframe {
        min-width: 750px;
        min-height: 500px;
      }
      #top_query {
        width: 100%;
        margin-left: 50%;
        transform: translateX(-50%);
      }
      #frame_url {
        margin-bottom: 10px;
        width: 89%;
        text-align: center;
        float: left;
      }
      #load_url {
        float: left;
        width: 19%;
      }
      img#load_url,
      img#incognito {
        float: left;
        max-height: 20px;
        width: auto;
        margin-left: 1%;
      }
    </style>
  </head>
  <body>
    <div id="top_query">
      <input id="frame_url" type="url">
      <img id="load_url" src="search.png">
      <img id="incognito" src="incognito.png">
    </div>
    <div>
      <iframe id="frame_id" src="about:blank" frameborder="0"></iframe>
    </div>
  </body>
</html>