title: Set background image in html body using python flask framework
body: <p>How to set html body background image 
  my images is inside FlasApp-->static-->in static there are two folders(css and images)-->
  <strong>In .css file used the below code:</strong></p>
  
  <pre><code>body  {
      background: url("images/background.jpg");
  }
  </code></pre>
  
  <p><strong>In .html file used the below code:</strong></p>
  
  <pre><code>&lt;link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}"&gt;
  </code></pre>
  
  <p>But neither background color is shown nor background image.</p>