christianstclair

/**
 * A mixin which helps you to add depth to elements according to the Google Material Design spec:
 * http://www.google.com/design/spec/layout/layout-principles.html#layout-principles-dimensionality
 *
 * Please note that the values given in the specification cannot be used as is. To create the same visual experience
 * the blur parameter has to be doubled.
 *
 * Adapted from a LESS version at https://medium.com/@Florian/freebie-google-material-design-shadow-helper-2a0501295a2d
 *
 * Original Author: Florian Kutschera (@gefangenimnetz), Conceptboard GmbH (@conceptboardapp)