styles.css

body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  color: #333;
}

.demos__tree__item:not(.depth-1) {
  margin: 8px 0 8px 16px;
}

.demos__tree__item-label {
  font-weight: 500;
  color: #2855cf;
  text-decoration: none;
}

.demos__tree__item-label.active {
  font-weight: bold;
}

.demos__wrapper {
  display: flex;
  height: 100vh;
}

.demos__sidebar {
  width: 240px;
  background-color: #f8f8f8;
  border-right: 1px solid #eeeeee;
  max-height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.demos__sidebar__branding {
  font-size: 1.5em;
  margin: 32px 0;
}

.demos__sidebar__branding a {
  color: inherit;
  text-decoration: none;
}

.demos__sidebar__search {
  margin-bottom: 32px;
  padding: 8px 16px;
  border: 1px solid #ccc;
  border-radius: 3px;
  outline: none;
}

.demos__content {
  flex: 1;
  max-height: 100%;
  overflow-y: auto;
}

.demos__content main {
  margin: auto;
  max-width: 1000px;
  padding: 16px 32px;
}

h2.demos__demo-group__name {
  font-size: 2em;
}

h3.demos__demo-group__name {
  font-size: 1.5em;
}

h4.demos__demo-group__name {
  font-size: 1.3em;
}

h5.demos__demo-group__name {
  font-size: 1.2em;
}

h6.demos__demo-group__name {
  font-size: 1.1em;
}

.demos__demo-item__name {
  border-bottom: 3px solid #ccc;
  margin-left: 32px;
  padding-bottom: 4px;
}

.demos__demo-item__description {
  margin-top: 32px;
}

.demos__demo-item__container {
  margin-bottom: 16px;
}

.demos__demo-item__view {
  display: block;
  text-decoration: none;
  text-align: right;
  text-transform: uppercase;
  font-size: 10px;
  color: #999;
  margin-bottom: 2px;
}

.demos__demo-iframe {
  width: 100%;
  border: 1px solid #e9e9e9;
  padding: 16px;
  box-sizing: border-box;
}