img {
  /* Responsive images (ensure images don't scale beyond their parents) */

  max-width: 100%;
  /* Part 1: Set a maxium relative to the parent */

  width: auto\9;
  /* IE7-8 need help adjusting responsive images */

  height: auto;
  /* Part 2: Scale the height according to the width, otherwise you get stretching */

  vertical-align: middle;
  border: 0;
  -ms-interpolation-mode: bicubic;
}