HTML “ < noscript > “ tag-when the browser does not support JavaScript

 The <noscript> tag is used to display some messages to the user when the browser does not support JavaScript or the user manually disables JavaScript execution.

Usage example:

<noscript>
  <p>此網頁需要支援 JavaScript 才能正確運行，請先至你的瀏覽器設定中開啟 JavaScript。</p>
</noscript>

The content in <noscript> will be displayed on the user's screen when the browser is in the following two situations:

1. The browser does not support JavaScript
2. JavaScript is forbidden to execute by the user (or other plug-ins)

On the contrary, browsers that normally support JavaScript will skip and ignore the content in <noscript>.