.demo-tabs {
  max-width: 30rem;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  overflow: hidden;
  font-family: system-ui, sans-serif;
}
.demo-tabs__bar {
  display: flex;
  background: #f6f8fa;
  border-bottom: 1px solid #d0d7de;
}
.demo-tabs__tab {
  flex: 1;
  padding: 0.6rem 1rem;
  border: none;
  background: transparent;
  font: inherit;
  color: #57606a;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.demo-tabs__tab:hover {
  background: #eef1f4;
}
.demo-tabs__tab[aria-selected="true"] {
  color: #0969da;
  font-weight: 600;
  border-bottom-color: #0969da;
}
.demo-tabs__panel {
  padding: 1rem 1.25rem;
  color: #24292f;
  line-height: 1.5;
}