No-Library (pure JS), HTML, CSS, JavaScript
jQuery (edge), HTML, CSS, JavaScript
Stack Overflow demo for the jQuery Masked Input plugin
This is a simple Twitter Bootstrap 3 template. You can fork it to get a ready to use Bootstrap 3 fiddle.
Example of what could be done. Original: http://jsfiddle.net/utluiz/cdkpp41d/
jQuery Compat (edge), HTML, CSS, JavaScript
Draw a graph and allows you to drag and drop vertices dinamically