What are the services for submitting js/css/html layout examples (similar to jsbin.com)?

Question

Computer networks

Question:
Suggest similar web services on codepen.io , jsbin.com , jsfiddle.net and cssdesk.com
Preface to the question:
Now I'm looking for a suitable service for rendering layout, I settled on cssdesk.com . It is most suitable for my tasks, but is no different from the same: codepen.io , jsbin.com and jsfiddle.net .
I'm interested in the possibility of recording with subsequent playback. cssdesk.com has one , but it's a bit buggy.
If you open cssdeck.com/labs/cq9o9xe5 , you will find this picture:

By clicking onplay , you will see how this example was created.
I want to draw your attention: it is desirable to see this particular function. I hope she is somewhere. If not, say so. cssdesk.com has it, but it's buggy.
What is the glitch? When I create a record and then another person tries to save it (fork), an error occurs: