Unfortunately by default Avenue to Learn automatically adds this border around your inserted MacVideo media. This is a function of how Brightspace is styling content in certain tools within their LMS.
To get around this edit the content, then go into HTML mode. Add the code frameborder=”0″ to the iframe attributes.
![frameborder="0" in code](https://avenuehelp.mcmaster.ca/wp-content/uploads/2019/11/brightspace-frameborder0.png)