jQuery 2.1.0, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
jQuery 1.10.1, HTML, CSS, JavaScript
Drag and drop sortable with trashcan. Uses Element.Collide() external Class.
animates left position to shake element when input:invalid
Mootools 1.4.5, HTML, CSS, JavaScript
Forked: http://jsfiddle.net/chriscoyier/Vm9aM/ Source: http://css-tricks.com/snippets/css/multiple-borders/
Mootools 1.3.2, HTML, CSS, JavaScript