title: 2 columns with background image filling 100% of the screen
body: <p>I'm a beginner in CSS and I want to create a landing page with 2 columns (left and right) with each column a different background image.</p>
  
  <p>width: 2 images should fill 50% of the screen.
  height: 100% of the screen.</p>
  
  <p>I thought it would be simple but cannot figure it out. Can someone give me some advise please.</p>
  
  <p>thanks...</p>