style.css

body {
  padding: 0 2rem;
  margin: 2rem;
}

.container:not(:last-child) {
  margin-bottom: 1rem;
}

i.brand {
  margin-right: 1rem;
}

div.containers > .container {
  display: inline-block;
  max-width: 400px;
}

.balloon.container .balloon {
  max-width: 600px;
  margin: 2rem 2rem;
}

.balloon.container .messages {
  display: flex;
  flex-direction: column;
}
.balloon.container .message {
  display: flex;
}
.balloon.container .message i {
  align-self: flex-end;
}
.balloon.container .message.-left {
  align-self: flex-start;
}
.balloon.container .message.-right {
  align-self: flex-end;
}

.form.container > .field:not(:last-child) {
  margin-bottom: 1rem;
}

.footer {
  text-align: center;
}
.footer a {
  color: #333;
  text-decoration: none;
}

.github-link {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 999;
  display: flex;
  height: 100px;
  color: #333;
  text-decoration: none;
}
.github-link:hover {
  text-decoration: none;
}
.github-link > p.balloon {
  align-self: flex-start;
  padding: 0.2rem 0.5rem;
  font-size: 0.8rem;
  color: #333;
}
.github-link > i.octocat {
  align-self: flex-end;
}