div.scroll-container {
  /* background-color: #333; */
  display: block;
  background-color: none;
  overflow: auto;
  white-space: nowrap;
  padding: 10px;
  /* overflow: hidden;  Hide scrollbars */

}

div.scroll-container img {
  padding: 1px;
  overflow: scroll;
  scrollbar-color: aqua;
  scrollbar-color: #007 #bada55;
}