.background, #error, .contentpane{
background: white!important; 
 background-image: url("images/bg_4.jpg")!important; /* The image used */
  
  height: 1200px!important; /* You must set a specified height */
  
  background-position: top!important; /* Center the image */
  background-repeat: no-repeat!important; /* Do not repeat the image */
  background-size: cover!important; /* Resize the background image to cover the entire container */

}