style.css

* {
  margin: 0;
}

html,
body {
  --grey: hsl(240, 9%, 89%);
  height: 100%;

  font-family: 'Roboto', sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  display: grid;
  place-items: center;
}

main {
  background: url(images/background.svg) no-repeat center/cover;
  width: 100vw;
  min-height: 812px;
  height: 100vh;
}

.container {
  max-width: 250px;
  margin-left: auto;
  margin-right: auto;

  text-align: center;
  color: var(--grey);
}

.avatar {
  width: 10rem;
  margin: 11.5rem auto 0;
  position: relative;
}

.avatar span {
  position: absolute;
  top: -15px;
  z-index: 1;
  animation: rotated 10s linear infinite;
}

.avatar > img {
  width: 10rem;
  height: 11.5rem;

  object-fit: cover;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

h1 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
}

p {
  margin-top: 1.5rem;
}

ul {
  margin-top: 3rem;
  list-style: none;
  padding: 0;

  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

li a {
  transition: 0.3s;
  display: inline-block;
}

li a:hover {
  transform: translateY(-10px);
}

/* Stamp Animation Rocketseat */

@-webkit-keyframes rotated {
  0% {
    -webkit-transform: rotate(0);
    transform: rotate(0);
  }

  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes rotated {
  0% {
    -webkit-transform: rotate(0);
    transform: rotate(0);
  }

  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

/* Media Query */

@media (min-width: 720px) {
  main {
    background: url(images/background-desktop.svg) no-repeat center/cover;
    min-height: 700px;
  }

  p {
    margin-top: 1rem;
  }

  ul {
    margin-top: 1.5rem;
  }
}