> For the complete documentation index, see [llms.txt](https://bubble.digital-bird.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bubble.digital-bird.com/classify.md).

# How to add a custom class or an ID to a Bubble element

1. In your project settings, under General, make sure "Expose the option to add an ID attribute to HTML elements" is enabled. 

![](/files/-MXg-2OYxjSrjULXUAa8)

2\. Install Plugin Classify

![](/files/-MXg-Ao-dMtUzF0M2-Qx)

3\. Use it

Now you have access to the "ID Attribute" field. Use a special format to add a class name, ID or attribute to your Bubble element.

On the screenshot below we are adding id "section1" and a class name "spy-item":

![](/files/-MXg-DqsbOffPHucNqB9)

> Plugin page: <https://bubble.io/plugin/classify-1568299250417x684448291308175400>

> Forum: <https://forum.bubble.io/t/classify-a-tiny-plugin-that-brings-css-power-to-bubble/67741>