How to render HTML and CSS from textboxes on webpage into a -

Basically I'm trying to create a small clone of JSFiddle.

That is, I want to allow my users to type some HTML and CSS and see the results provided in the other area of ​​the screen. I am also looking to use AngularJS.

Do anyone have any advice or experience about this?

I'm not sure how many JavaScript you know / want to use, but you have HTML, CSS And create 3 frames for output. In the HTML and CSS frames, enter an input text field, then by clicking on the "run" button, change the HTML inside the output to HTML (within HTML tags) and CSS (within the style tags) content.