#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: 90vw;
}