#content {
  background-image: url(images/sdx_bg_knee.jpg);
  background-repeat: no-repeat;
  background-position: right;
  background-size: auto 100%;
  text-shadow:1px 1px 2px #FFFFFF;
}

@media only screen and (max-width: 767px) {
  #content { background-image: none; text-shadow: none; }
}

@media only screen and (min-width: 480px) and (max-width: 767px) {
  #content { background-image: none; text-shadow: none; }
}