.demo-panel {
  margin: 16px auto;
  padding: 10px 14px;
  max-width: 620px;
  border: 1px solid #65dce766;
  border-radius: 12px;
  background: #101d36;
  color: #deefff;
  font:
    13px/1.5 system-ui,
    sans-serif;
}
.demo-panel summary {
  cursor: pointer;
  color: #93edf1;
}
.demo-panel button {
  padding: 10px 14px;
  border: 1px solid #65dce7;
  border-radius: 8px;
  color: #deefff;
  background: #21324e;
  cursor: pointer;
}