> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.getgreenspark.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# General CSS

A cascading style sheet (CSS) changes how elements are displayed in your theme, and can control the appearance of several pages at one time. You can customise your theme beyond the settings that are built into a theme by using the custom CSS feature.