@media only screen and (max-width: 760px) {

  .rw-bootstrap-1col .pane-bundle-rm-image-text-pane .field-type-image img,
  .rw-bootstrap-1col .pane-bundle-simple-ad-pane-wide img
  {
      width: 100%;
  }

  .rw-bootstrap-1col .pane-bundle-simple-ad-pane-wide {
    border: solid #aaa 1px;
  }

}