How to make background image fill whole div ss code example

Example 1: css fill div with background image

div {
  background-image: url("example.com/image.png");
  background-size: 100% 100%;
}

Example 2: fill and no repeat background image css

/* with CSS 3 */
#yourdiv {  
    background: url('bgimage.jpg') no-repeat;
    background-size: 100%;
}