html,
body {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-family: Arial, sans-serif;
  text-align: center;

  margin: 0;
  padding: 0;
}

header {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;

  padding: 1rem 0;

  background-color: #0b31ba;
  color: #fff;
  width: 100%;
}

main div {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

img {
  max-width: 250px;
  width: 100%;
  transition: 0.5s;
}

img:hover {
  animation: rodar 5s linear infinite;
}

h1 {
  margin: 0;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  font-size: 2.5rem;
}

p {
  font-size: 1.2rem;
}

small {
  display: block;
}

a {
  color: inherit;
}

@keyframes rodar {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}