* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

.page-header {
  color: #fff;
  background: #191818;
  margin: 0;
  padding: 10px 20px;
}

.github-link {
  float: right;
}

.github-link svg {
  height: 45px;
  margin: 5px;
}

#root {
  max-width: 90vmin;
  margin: 1vmin auto;
}

@media only screen and (max-width: 768px) {
  #root {
    max-width: initial;
    margin: 0;
  }
}