#title-box
{
 position: fixed;
  top: 0;
  left: 0;
  z-index:1;
  width:100%;
  text-align: center;
  background-color: lightgreen; 
}
#content
{
 position: absolute;
  text-align: center;
  top: 120px;
}
img
{
 width:50vw 
}