html, body {
  height: 100%;
  margin: 0;
  padding: 0;
 }
body {
  
  background-image: url('pxfuel.jpg'); /* Path to your image */
  background-size: cover;            /* Make the background cover the entire page */
  background-position: center;       /* Center the image */
  background-repeat: no-repeat;      /* Prevent the image from repeating */
  position: absolute;
}