.holder-check{max-width:760px;margin:24px auto}.holder-check h1{font:900 clamp(2rem,5vw,3.6rem)/1 Georgia,serif;letter-spacing:-.04em;margin:12px 0}.holder-check>.panel{margin-top:24px}.holder-check .panel-head{letter-spacing:.08em;text-transform:uppercase}.holder-check .panel-body{display:grid;grid-gap:16px;gap:16px}.holder-check code,.holder-check pre{overflow-wrap:anywhere;word-break:break-word}.holder-check-challenge{border:2px solid #26367b;background:#e9fbf7;padding:14px}.holder-check-challenge pre{white-space:pre-wrap;background:#10183d;color:#eafff9;padding:16px;max-height:340px;overflow:auto;font:12px/1.55 Consolas,monospace}.holder-check-success{border:2px solid #1a795b;background:#e2fff0;padding:14px}.holder-check-success strong{font-size:1.15rem}