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If you're not familiar with CSS, here are a few resources that will generate it for you:

<a href="http://www.colorzilla.com/gradient-editor/" rel="nofollow noopener noreferrer" target="_blank">The Ultimate CSS Gradient Generator</a>

<a href="http://www.cssmatic.com/box-shadow" rel="nofollow noopener noreferrer" target="_blank">CSSmatic Box Shadow Generator</a>

<a href="http://www.cssportal.com/css3-text-shadow-generator/" rel="nofollow noopener noreferrer" target="_blank">CSSPortal Text Shadow Generator</a>

- <a href="http://www.colorzilla.com/gradient-editor/" rel="nofollow noopener noreferrer" target="_blank">The Ultimate CSS Gradient Generator</a>
- <a href="http://www.cssmatic.com/box-shadow" rel="nofollow noopener noreferrer" target="_blank">CSSmatic Box Shadow Generator</a>
- <a href="http://www.cssportal.com/css3-text-shadow-generator/" rel="nofollow noopener noreferrer" target="_blank">CSSPortal Text Shadow Generator</a>

There are many more resources available on the web, both for learning to write your own or generating it for you. If you have a favorite, please send it to us at <a href="http://info@irise.com/" rel="nofollow noopener noreferrer" target="_blank">info@irise.com</a> and we'll add it to the list.  

Tutorial: Video introduction to advanced formatting support in Editor - add custom CSS to widgets or screens.