Do you want a different way embed your flipboard?
The code they give you looks like this: <a data-flip-widget="mag" href="https://flipboard.com/@erebusanonymous/the-most-interesting-magazine-psvkr9t8y">View my Flipboard Magazine.</a> <script src="https://cdn.flipboard.com/web/buttons/js/flbuttons.min.js" type="text/javascript"></script> Which produces this: View my Flipboard Magazine.
and that's fine, but (if needed) you can't change the size or shape of it to fit somewhere better, some sites don't support it, plus you're calling an extra script file (external) that may slow down a page's loading time.

You can actually use an iframe to have more control of it with a small change to the url,
all you have to do is add the word "cover" to your magazine's URL after the flipboard.com
For example:
If your magazine URL is: https://flipboard.com/@erebusanonymous/the-most-interesting-magazine-psvkr9t8y

Then your iframe URL will be: https://flipboard.com/cover/@erebusanonymous/the-most-interesting-magazine-psvkr9t8y

Now you can change the size and shape, or add a border, or whatever you want by using an iframe.
*Examples:

*The above code would look like this:
<iframe height="175" src="https://flipboard.com/cover/@erebusanonymous/the-most-interesting-magazine-psvkr9t8y" style="border: 3px solid red;" width="80%"></iframe>

*The above code would look like this:
<iframe height="650" src="https://flipboard.com/cover/@erebusanonymous/the-most-interesting-magazine-psvkr9t8y" style="border: 2px solid black;" width="20%"></iframe>
and you can also use "border:none;" or "border:3px dashed red;" etc.. or any combination you want in the iframe.