1. Inside your n8n workflow, click the 'Add' button to create a new step.
2. After that, go to the right-hand panel and click 'Data Transformation'.
3. Browse the list, then select 'HTML'.
4. Subsequently, choose 'Extract HTML Content' as the Action Event.
5. Now, it's time to configure the selected node. As for the Operation, make sure that the default configuration is set to 'Extract HTML Content'.
6. Following that, tap the 'Source Data' menu and specify the type of data you want to use. Choose 'Binary' or 'JSON'.
7. Subsequently, specify the data property based on your input from the previous node.
8. Go to the Extraction Values section afterwards, then provide all the required information. Enter the Key, CSS Selector, Return Value, and Skip Selectors into their respective input fields.
9. If you need to configure additional values, tap 'Add Value' and repeat the same procedure.
10. Once done, click 'Execute Step' to proceed.
11. Finally, the HTML Extract node will be activated in your n8n workflow based on your configuration.