What did I receive?

In your email, you will find your HTML code for the login button, which looks like this:

<!-- Login Button -->
<div style="color:#333;margin:1em auto;text-align:center;">
<div style="display:inline-block;max-width:350px;padding-right:1em;text-align:center;">
<h1>Online access</h1>
<p>Our simple online system makes it possible to access your project from any computer, tablet, or smartphone.<br /><iframe src="https://buildertrend.net/NewLoginFrame.aspx?color=White" style="border:0px;height:60px;width:100%;margin-top:1em;frameborder:0;"></iframe></p>
</div>
</div>
<!-- /Login Button -->