nes.css/style.css

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

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

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

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

div.tables {
  display: flex;
  flex-wrap: wrap;
}

div.tables > .nes-table {
  min-width: 350px;
  max-width: calc(50% - 2rem);
}
div.tables > .nes-table:first-child {
  margin-right: 2rem;
  margin-bottom: 2rem;
}

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

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

.form.nes-container > .nes-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.nes-balloon {
  align-self: flex-start;
  padding: 0.2rem 0.5rem;
  font-size: 0.8rem;
  color: #333;
}
.github-link > i.nes-octocat {
  align-self: flex-end;
}

@media screen and (max-width: 768px) {
  body {
    padding: 0;
    margin: 2rem 0.2rem;
  }
  div.tables > .nes-table {
    max-width: 100%;
    margin-right: 0;
  }
  .balloon.nes-container .nes-balloon {
    max-width: 70%;
  }

  .github-link {
    display: none;
  }
}