Excellent Avgrund modal concept by @hakimel packaged as Backbone.View.
Avgrund = require 'backbone.avgrund'
class MyModal extends Avgrund
render: ->
this.$el.html """
<p>Hello, world</p>
"""
this
myModal = new MyModal()
myModal.render()
$(document.body).append myModal.el
myModal.show() # also triggers 'show' event
myModal.hide() # also triggers 'hide' event