img.thumb {
  /*width:         100%;
  leave max height as 300px as per .img on site.css
   * */
  max-height:    unset;
  max-width:     unset;
  height:        390px;
}
img.thumb-map {
  /*width:         100%;
  max-height:    100vh;
  leave max height as 300px as per .img on site.css
   * */
  max-height:    unset;
  max-width:     unset;
  height:        390px;
}
img.big {
  height: 100vh;
  max-height:    100vh;
  width:  unset;
  max-width:     unset;
}