body {
  background-color: #004aad;
  overflow: hidden;
}

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

@media (max-width: 400px) {
  img {
    max-width: 400px;
  }
}