Can I have my stick call to action button be direct to an external link when clicked?

Currently, my sticky call to action button is directed to my "Order" navigation page, which used to be a squarespace page. But after I updated my Order page to be directed to an external link, my code below doesn't work anymore. Is there a way to have my stick call to action button be directed to an external link when clicked?

<div id="btnFloatBook">
  <a style="position: fixed; z-index: 100; bottom: 1em; right: 1em;  padding: 1em 2em; background-color: #AC2929 ;color: #fff;font-family: Khand;
    font-weight: 700;
    font-style: normal;
    letter-spacing: .02em !important;
    text-transform: uppercase;
    line-height: 1.2em !important;
    font-size: 1rem;"
   link href="/order" class="sqs-block-button-element--medium sqs-button-element--primary sqs-block-button-element">Order Now</a>
</div>

@app4qp You've to update the URL in the code.

In your code, change this part

link href ="/order"

to

link href="/replace-with-external-link-url"