* {
  box-sizing: border-box;
  color: #333;
}

body {
  background-color: gray;
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  width: 100%;
  margin: auto;
}

.carousel {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 400px;
  margin-top: 8px;
}

.carousel > img {
  max-width: 45%;
  max-height: 400px;
}

.carousel-smaller {
  width: 50%;
}

.carousel-smaller > img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: inline-block;
  margin: 15px;
  cursor: pointer;
  border: 2px solid #333;
}

.carousel-smaller > img.active {
  border-color: #ad343e;
  opacity: 0.6;
}

#modal {
  background-color: rgba(0, 0, 0, 0.9);
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
}

#modal:empty {
  display: none;
}

#modal > div {
  background-color: white;
  max-width: 500px;
  padding: 15px;
  border-radius: 5px;
  text-align: center;
}

#modal .buttons button {
  display: inline-block;
  margin-right: 15px;
}

@media only screen and (max-width: 600px) {
  .carousel-smaller > img {
    width: 60px;
    height: 60px;
  }
}