Joomla! 4 is completely redesigned, rethought, and has new features. Joomla 4 Templates

If you know how to work with Joomla, try the Sparky Framework. With Sparky, it’s not necessary to write any code manually. However, if you know HTML, CSS, and JavaScript, you can combine your skills with Sparky.

Also, since this framework is developed for Joomla CMS, you should have a fair knowledge about the administration of Joomla websites.

Some of the sections in this documentation are therefore marked as “advanced” and they are appropriate for users familiar with HTML and CSS.

In the Sparky Framework, you can use all CSS units that’s used in the modern web design practices. Each option in the Sparky’s template options page which is dimension type, allow you to select an appropriate unit. Default unit for all dimension type parameters is pixel (px). Feel free to use the units you are comfortable with and these you understand well.