Not Getting Rounded Corners

Hi guys, l have made something with ShadedBorder by following some tutorials, now i have made the box and text in it easy as pie, but for some reason i am not getting the rounded corners, can some read through this and help me understand why?:?:?:?

I included this:

Added this:

var myBorder = RUZEE.ShadedBorder.create({ corner:8, shadow:16 });
myBorder.render('my-border');

HTML:

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