<input type="text" class="form-control" placeholder="唯讀欄位" readonly>

<input type="text" class="form-control" placeholder="失效欄位" disabled >

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css

External JavaScript

This Pen doesn't use any external JavaScript resources.