Iframe

Buy Now

<a href="https://your-affiliate-link.com" target="_blank" 

   style="display:inline-block;padding:12px 20px;background:#ff6600;color:#fff;text-decoration:none;border-radius:5px;">

   Buy Now

</a>

<div style="position: relative; width: 100%; height: 0; padding-bottom: 75%;">

    <iframe 

        src="https://your-affiliate-link.com"

        style="position: absolute; top:0; left:0; width:100%; height:100%; border:0;"

        allowfullscreen>

    </iframe>

</div>

<iframe 

    src="https://your-affiliate-link.com" 

    width="100%" 

    height="600px" 

    frameborder="0"

    style="border:0; overflow:hidden;">

</iframe>