body {
  font-family: "IBM Plex Sans", sans-serif;
  background-color: #f5f5f5;
  color: #333;
}

.collaborators {
  font-weight: bold;
}

.mail::before {
  content: "@";
}

h1,
h2 {
  font-family: "IBM Plex Mono", monospace;
}