CssDeck is described as 'Its about quite a few things. You can use CSSDeck to make testcases and share with other people on IRC, forums, StackOverflow, etc. who help you solve your coding problems. You can even code with multiple people in realtime in various modes. Remember etherpad ?' and is a Code Editor in the Development category. There are more than 25 alternatives to CssDeck, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Android. The best alternative is Pastebin.com, which is free. Other great sites and apps similar to CssDeck are CodePen (Freemium), jsFiddle (Free), JS Bin (Freemium, Open Source) and JSitor (Free).
The website is mainly used by programmers to store pieces of sources code or configuration information, but anyone is more than welcome to paste any type of text. The idea behind the site is to make it more convenient for people to share large amounts of text online.
CodePen is a social development environment for front-end designers and developers. 👋 It’s the best place to build and deploy a website, show off your work, build test cases, and find inspiration. We call them Pens.
snippet.host is a minimal text and code snippet hosting. With memorable domain name, it is free, lightweight, with no ads or cookies. Features include syntax highlighting in multiple languages, easy-to-use API and Tor hidden service support.
dabblet is an interactive playground for quickly testing snippets of CSS and HTML code. It uses -prefix-free, so that you won't have to add any prefixes in your CSS code. You can save your work in Github gists, embed it in other websites and share it with others.