.imgtxt {
  width: fit-content;
  height: fit-content;
  display: inline-block;
  position: relative;
}
.imgtxt span {
  opacity: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 99;
  font-size: 2.5rem;
  color: #FFF;
  filter: drop-shadow(1px 1px 0 black) 
    drop-shadow(-1px 1px 0 black)
    drop-shadow(1px -1px 0 black)
    drop-shadow(-1px -1px 0 black);
}
.imgtxt:hover span, .imgtxt:focus span {
  opacity: 1;
}
.imgtxt:hover img, .imgtxt:focus img {
  /* add hover effects like transform or filter to your images here! */
}
.photopile { 
  display: flex; 
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  max-width: 100%;
}
.photopile figure { 
  display: inline-block;
  background: white;
  box-shadow: 1px 4px 5px rgba(0,0,0,0.55);
  transform: rotate(2deg);
  margin: 0 -25px;
}
.photopile figure img {
  max-width: calc(100% - 2rem);
  margin: 1rem 1rem 0 1rem;
  border: 2px rgb(0,0,0,0.55) inset;
}
.photopile figcaption, .popovers figcaption {
  font-family: /* set this to have it match the rest of the page */;
  text-align: center;
  margin: 0.5rem 1rem 1rem 1rem;
  font-size: 1rem;
  color: black;
}
.photopile button { 
  background: none; 
  border: none;
  max-width: 40%;
}
.photopile button:hover, .photopile button:focus { 
  z-index: 3;
  cursor:pointer;
}
.photopile button:nth-child(2n) { 
  transform: rotate(-10deg);
}
.photopile button:nth-child(3n) {
  transform: rotate(5deg);
}
.photopile button:nth-child(4n) { 
  transform: rotate(4deg);
}
.photopile button:nth-child(5n) { 
  transform: rotate(-2deg);
}
.photopile button:nth-child(6n) {
  transform: rotate(-7deg);
}
:popover-open {
  border: none;
  box-shadow: 1px 4px 5px rgba(0,0,0,0.55);
  position: fixed;
  top: 50vh;
  left: 50vw;
  transform: translate(-50%,-50%);
}
.popovers figure:popover-open {
  display: block;
  background: white;
  width: 88vmin;
}
.popovers figure:popover-open figcaption {
  margin: 2.5vmin 1rem 4vmin 1rem;
  font-size: 175%;
  color: black;
}
.popovers figure:popover-open img {
  margin: 4vmin 4vmin 0 4vmin;
  width: 80vmin;
  border: 4px rgb(0,0,0,0.55) inset;
}