h1 {
  font-size: 24px;
  text-align: center;
  margin: 30px 0;
}

img {
    border: 1px solid teal;
}

button {
  font-size: 24px;
  width: 100px;
  height: 50px;
  border-radius: 10px;
}

#featured {
    text-align: center;
    padding:10px;
}

#featured img {
    width: 400px;
    height: 300px;
}

#prev, #next {
    position: relative;
    bottom: 150px;
}

#gallery {
    text-align: center;
}

#gallery img {
  border: 1px solid teal;
  width: 150px;
}