HTML Widget Not Working

As you can see at the bottom of this page, I have a Goodreads widget. To do this, I did NOT use the Jetpack Goodreads widget, but created a widget on Goodreads and then pasted it into an HTML widget.

The problem is that the custom widget I created on Goodreads is being overridden by the general widget Jetpack creates (the appearance is not as I want it). Any ideas why this is happening, and how to fix it?