gridster.js

Gridster is a jQuery plugin that allows building intuitive draggable layouts from elements spanning multiple columns. Visit Link

Fibonacci Flexbox Composer

This is an amazing piece of kit. Start with a box and add columns or rows. Then, from within each resulting box, create another set of evenly spaced columns or rows. It provides some exciting layout ideas. Check out the layout I created in 34 seconds. http://ift.tt/1w2To2y Visit Link