Apps like CSS Playground

Here are some great alternatives to CSS Playground by webref.ru :
CSS Editor
CSS Editor
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CSS For Beginners
CSS For Beginners
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Learn CSS
Learn CSS
★5.0
Material Colors
Material Colors
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Denim Jeans Launcher Themes
Denim Jeans Launcher Themes
★4.8
Wow Original Theme
Wow Original Theme
★4.5
Wow Halloween Aesthetic Theme
Wow Halloween Aesthetic Theme
★4.3
Wow Salmon White - Icon Pack
Wow Salmon White - Icon Pack
★4.0
Wow Cherry Dark - Icon Pack
Wow Cherry Dark - Icon Pack
★3.5
Wow Bear White Cute Icon Pack
Wow Bear White Cute Icon Pack
★5.0
Wow Bear Theme - Icon Pack
Wow Bear Theme - Icon Pack
★4.1
Wow Blue Dark Theme, Icon Pack
Wow Blue Dark Theme, Icon Pack
★3.9
Beach Holiday Theme
Beach Holiday Theme
★4.0
Vsmart Themes
Vsmart Themes
★4.1
Styles4Nailz – Nail Designs
Styles4Nailz – Nail Designs
★4.2
Clock, Date and Weather Widget
Clock, Date and Weather Widget
★4.1