/* modify the container you created to be a set width-height */
/*#imageDiv{
  width: 400px;
  height: 700px;
  overflow: hidden;  essential, hides the overflow from the image 
}*/

#imageDiv img{
  width: 700px;
  height: 250px;
  width: 100%;  /* makes image 100% width of the container */
  position: relative; /* allows movement inside the container */
      /* OPTIONAL: use this to adjust where the 'center' starts */
      /* only useful on images that will be clipped */
  /*top: -__px;  */
}