body {
  margin: 0;
  height: 100vh;
  width: 100vw;
  background-image: linear-gradient(to bottom right, #3b86ff, #1d3663);
}

.main {
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.main img {
  max-width: 456px;
  width: 80vw;
}