examples.css

body {
  background: rgb(251, 247, 240);
}

main {
  display: flex;
  flex-flow: row;
  align-items: flex-start;
  justify-content: flex-start;
}

dialog:not([open]) {
  display: none;
}

dialog {
  bottom: 0;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
}

.logo {
  width: 6ex;
  height: 6ex;
  margin: 0 0 1ex;
}

.sidebar {
  width: 10em;
  margin-top: 3ex;
  margin-left: 2em;
}

.nav {
  white-space: nowrap;
}

.nav li {
  list-style: none;
}

.nav a {
  display: block;
  position: relative;
  text-decoration: none;
}

.nav a.active {
  font-weight: bold;
  color: #000;
}

.nav a.active::before {
  content: "►";
  display: inline-block;
  position: absolute;
  left: -1em;
  font-size: 1em;
}

.container {
  flex-grow: 0;
  background-color: #fff;
  border: 0.25ex solid #333;
  border-radius: 1ex;
  box-shadow: 1ex 1ex 0 0 rgba(0, 0, 0, 0.25);
  margin: 7ex 3em 0 0;
  padding: 2.5ex 2em;
  display: flex;
  flex-direction: column;
}

.clipboard-button {
  display: none;
}

.clipboard--supported .clipboard-button {
  display: initial;
}

.clipboard-source {
  background-color: transparent;
  border: none;
  box-shadow: none;
  color: inherit;
  font-size: inherit;
}

.clipboard-paste {
  min-width: 20em;
  min-height: 8ex;
}

.slide {
  display: none;
  font-size: 6rem;
}

.slide--current {
  display: block;
}

.container--content-loader {
  min-width: 16em;
}

.tabpanel {
  border: 1px solid #dedede;
  display: none;
  margin-top: .4rem;
  padding: 0.8rem;
  font-size: 6rem;
}
.tabpanel--current {
  display: block;
}