main {
  display: flex;
  justify-content: center;
  justify-items: center;
  /* border: ridge; */
  border-radius: 20px;
}

img {
  border-radius: 100%;
  border: 5px solid white;
}
section {
  background-color: cadetblue;
  padding: 2em;
  margin: 10px;
  border: 5px solid black;
}
#btn {
  padding: 2em;
  text-align: center;
}