/* CSS box model*/

#b1{
      background-color:#ffeeee;
      box-shadow:11px 10px 10px 0 rgba(200,0,0,0.2); 
}

#b2{
      background-color:#eeffee;
      box-shadow:11px 10px 10px 0 rgba(0,200,0,0.2); 
}

#b3{
      background-color:rgba(100,220,255,0.35);
      box-shadow:11px 10px 10px 0 rgba(0,0,200,0.2); 
}