body {
  background-color: rgb(99, 186, 193);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

main {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}
img {
  height: auto;
  width: 60%;
  max-width: 500px;
}