body {
  background: #E8EBF3;
  height: 100vh;
  font: 400 16px Roboto, sans-serif;
  display: flex;
  flex-direction: column;
}
body .socials {
  position: fixed;
  display: block;
  left: 20px;
  bottom: 20px;
}
body .socials > a {
  display: block;
  width: 30px;
  opacity: 0.2;
  transform: scale(var(--scale, 0.8));
  transition: transform 0.3s cubic-bezier(0.38, -0.12, 0.24, 1.91);
}
body .socials > a:hover {
  --scale: 1;
}

.container {
  width: 1200px;
  margin: 30px auto;
  max-width: 90%;
  background-color: #fff;
  padding: 30px;
}
a {
  text-decoration: none;
}
a * {
  text-decoration: none;
}
.level-1 {
  font-weight: bold;
  background-color: #eee;
  padding: 5px 10px;
  border: 1px solid #999;
  border-radius: 5px;
}