html,
body {
  margin: 0;
  padding: 0;

  font-family: 'Roboto', sans-serif;
  font-size: 14px;
  line-height: 1.75;
  color: #666;
  text-align: justify;
  background-color: #eee;
}

h1 {
  font-family: 'Roboto', sans-serif;
  font-size: 3em;
  color: #5B26E5;
  text-align: center;
}

h2 {
  font-family: 'Roboto', sans-serif;
  font-size: 2.1em;
  font-weight: bold; /* Gras */
  color: #5B26E5;
}

a {
  text-decoration: underline;
  color: #5B26E5;
}

body > main {
  box-sizing: border-box;

  margin: 1em auto;
  padding: 3em;

  border: 1px solid #0008;
  border-radius: 0.5em;
  box-shadow: inset 0 0 10px #0004;

  width: calc(100% - 2em);
  max-width: 70em;

  background-color: #fff;
}