I'm a designer, and consider HTML/CSS/JS to be as good a design tool as any, perhaps even better than any CAD app. I use Sketch, Illustrator and Photoshop as needed for icons, illustrations and photos.
Also, code is a really handy tool for design (generation/automation).
I believe in using the right tool for whatever "material" I'm working with. For (responsive) web apps, that tool is HTML/CSS/JS.
Most designer's have their own preferences. I don't believe any current or future wysiwyg app can meet all needs.
It's possible using nested elements and transform: translate(0, -100%) on the inner element. It's elegant enough for CSS, I suppose. (I'd make an example if I wasn't on my mobile atm.)
Ok, got you. If you use the "Create New" button in the top right corner, you get the option to create a "JS" project.
The project template comes with jQuery pre-installed. However, it can easily be removed.
I guess the people behind Runnable assumes that it's more convenient to have to remove jQuery than having to add it for each new JS project, and personally I agree with that assumption.
This reasoning seems fundamentally confused, so I feel like clarifying some concepts:
On Runnable you can create basic client-side JavaScript files to be run in the browser (without jQuery) and do window and DOM manipulations.
Node.js isn't a framework for the browser (like jQuery), but a server application platform (with a bunch of objects and functions).
"Pure js" doesn't exist as an environment. It runs within a parent environment (e.g. a browser or a server) and manipulates the global objects in that environment.
JavaScript is just a language specification, and can be implemented in any environment. (For instance, it's implemented in Adobe Illustrator.)
Also, code is a really handy tool for design (generation/automation).
I believe in using the right tool for whatever "material" I'm working with. For (responsive) web apps, that tool is HTML/CSS/JS.
Most designer's have their own preferences. I don't believe any current or future wysiwyg app can meet all needs.