HTML Code

<!DOCTYPE html>

<html>

<head>

  <title>CSS :read-only Textarea Example</title>

  <style>

    body {

      font-family: system-ui, sans-serif;

      padding: 1.5rem;

    }



    label {

      display: block;

      font-weight: 600;

      font-size: 0.875rem;

      margin-bottom: 0.35rem;

      color: #334155;

    }



    textarea {

      width: 100%;

      max-width: 20rem;

      padding: 0.5rem 0.75rem;

      border-radius: 0.4rem;

      font-size: 0.875rem;

      font-family: inherit;

      min-height: 5rem;

    }



    textarea:read-only {

      background: #f1f5f9;

      border: 1px solid #e2e8f0;

      color: #64748b;

      resize: none;

      cursor: default;

    }



    textarea:read-write {

      background: #fff;

      border: 2px solid #cbd5e1;

      resize: vertical;

    }

  </style>

</head>

<body>

  <label for="terms">Terms (read-only)</label>

  <textarea id="terms" readonly>You agreed to these terms on Jan 15, 2026.</textarea>

</body>

</html>

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CSS :read-only Selector - Textarea