# Introduction In this step-by-step lab, you will learn how to use HTML's `<aside>` tag. This tag is used to show content that's related to the main content but is not essential to it. > Note: You can practice coding in `index.html` and learn [How to Write HTML in Visual Studio Code](https://code.visualstudio.com/docs/languages/html). Please click on 'Go Live' in the bottom right corner to run the web service on port 8080. Then, you can refresh the **Web 8080** Tab to preview the web page.
Click the virtual machine below to start practicing