.my-gallery {
  width: 100%;
  float: left;
}
.my-gallery img {
  height: 85%;
  width: auto;
}
.my-gallery figure {
  display: block;
  float: left;
  margin: 0 5px 5px 0;
  height: 140px;
}
.my-gallery figcaption {
  text-align: center;
  font-size: 70%;
}
.my-gallery figcaption #hide {
  display: none;
}