body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(-45deg, #1de9b6, #1dc4e9, #f44236, #f48fb1);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: white;
  text-align: center;
}

@keyframes gradientBG {
  0% {background-position: 0% 50%;}
  50% {background-position: 100% 50%;}
  100% {background-position: 0% 50%;}
}

.container {
  padding: 10% 5%;
}

.logo {
  width: 100px;
  margin-bottom: 20px;
}