#default-div
{
  background: blue;
}

#static-div {
 background:green;
  position: static;
 
}
#parent-div{
position: relative;
background:orange;
 padding: 5px;
}
#default-div
{
  background:blue;
}
#absolute-div {
 background: green; 
 position:absolute;
 top: 40px;
 left: 100px;
}