To remove the black border, you'll need to add an HTML Element. This is how:
Click on Element in the left hand menu in the editor window and then select HTML.
2. In the new window, copy and paste the code below to the left dialog box
<style> td,tr { border: none!important; padding-bottom: 1em !important} </style>
3. Apply the template to the listings. Don't know how? Click here for step by step instructions.
If you have any more questions, you can search our Help Center or, click on the chat tool in the bottom right corner and we'll be happy to help!