I would like to create a custom block, almost as the comment creates.
The small difference is that it will be adapted to my need, eg: It has a default CSS code, it automatically when I create the class, it creates the default block of the sublime, as we can see in the image below:
Let'sseethearrownexttotheclassname,itautomaticallycreatestheblock,asintheexampleimagebelowwiththeclosedblock:
I would like to create this block, only custom to add code to that block and then be able to close it and open it.