> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.perkzilla.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).

# Adding Additional CSS or Custom CSS to the Widget

# Adding Additional CSS or Custom CSS to the Widget

You may use additional CSS to change things like button color, design element visibility, font size and more!


${youtube}[Custom CSS](RkbECdWvDGw)


| Check out how [Adding a Shadow to the Widget Background](/en-us/article/adding-a-shadow-to-the-widget-background-1yugt76/)