* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  height: 100vh;
  background: linear-gradient(to right, #1f4037, #99f2c8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.center-content h1 {
  font-size: 4rem;
  color: #fff;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}