body {
  margin: 0;
  padding: 0;
  height: 100vh; /* Sets the height to 100% of the Viewport Height */
  width: 100vw;  /* Sets the width to 100% of the Viewport Width */

  background-image: url('images/gray-bg.png');
  background-size: auto 800px;
  background-position: center; /* Keeps the focus of the image centered */
  background-repeat: no-repeat;
  background-attachment: fixed; /* Keeps the image static while content scrolls */
  background-color: black;
}