*,
*::after,
*::before {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue';
}

a {
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
}

body {
  height: 100vh;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  place-content: center;
  background-image: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
}

h1 {
  color: #000;
  font-size: 6vmax;
  font-family: arial;
}

span::before {
  content: 'HTML';
  animation: animate 5s linear infinite;
}

@keyframes animate {
  0% {
    content: 'HTML';
  }
  25% {
    content: 'CSS';
  }
  50% {
    content: 'JAVASCRIPT';
  }
  75% {
    content: 'REACT';
  }
  100% {
    content: 'ASTRO';
  }
}