* {
  box-sizing: border-box;
}
.width-100 {
  width: 100%;
}
.border-bottom-grey {
  border-bottom: 1px solid lightgrey;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.carousel {
  width: 100%;
  position: relative;
  max-width: 500px;
  height: 600px;
  overflow: hidden;
  margin: 100px auto;
  display: flex;
}
@media (min-width: 1200px) {
  .carousel {
    width: 1200px;
  }
}
.carousel #img1 {
  display: block;
}
.carousel .left-button,
.carousel .right-button {
  display: flex;
  justify-content: center;
  align-items: none;
  flex-direction: row;
  color: #fff;
  background-color: #333;
  font-size: 40px;
  border-radius: 50%;
  position: absolute;
  width: 50px;
  height: 50px;
  cursor: pointer;
}
.carousel .left-button:hover,
.carousel .right-button:hover {
  color: #333;
  background-color: #fff;
  border: 2px solid #333;
}
.carousel .left-button {
  top: 50%;
  left: 25px;
  transform: translate(0, -50%);
  z-index: 10;
}
.carousel .right-button {
  top: 50%;
  right: 25px;
  transform: translate(0, -50%);
}
.carousel img {
  width: 100%;
  display: none;
}
.fadeIn {
  animation-name: fadeIn;
  animation-duration: 0.2s;
  animation-fill-mode: forwards;
}