body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', 'Segoe UI Emoji', 'Apple Color Emoji', 'Noto Color Emoji', sans-serif;
  line-height: 1.4;
  font-size: 1.2em;
  max-width: 800px;
  margin: 20px auto;
  padding: 0 10px;
  color: #363636;
  background: #fff;
}

h1 {
  font-size: 2.2em;
  margin-top: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: #000;
  margin-bottom: 12px;
  margin-top: 24px;
  font-weight: 600;
}

a {
  text-decoration: none;
  color: #0076d1;
}

a:hover {
  text-decoration: underline;
}

img, video {
  max-width: 100%;
  height: auto;
}

code {
  background: #efefef;
  padding: 2.5px 5px;
  border-radius: 6px;
}

#menu {
  display: flex;
  flex-wrap: wrap;
  padding: 0;
}

#menu li {
  display: inline-block;
  padding-right: 0.5em;
}

#domain {
  margin-left: auto;
}

#domain a {
  color: #888;
}

.banner {
  width: 100%;
}

.experimental {
  margin: 3em 0;
  padding: 1em;
  border: 4px dashed red;
  color: red;
  font-weight: bold;
}