<!DOCTYPE html>
<html>

<head>
  <title>textarea-numbers-sk</title>
  <meta charset="utf-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>

<body class="body-sk">
  <h1>textarea-numbers-sk</h1>
  <textarea-numbers-sk></textarea-numbers-sk>

  <h2>Action</h2>
  <button id="clear_error_lines">Clear Error Lines</button>
  <button id="add_fold_tokens">Add Fold Tokens</button>
  <button id="expand_outer_fold">Expand Outer Fold</button>
  <button id="expand_inner_fold">Expand Inner Fold</button>
</body>

</html>