dist/scrollify.es6.js
function scale(progress) {
  var to = (this.options.to !== undefined) ? this.options.to : 1;
  var from = (this.options.from !== undefined) ? this.options.from : this.transforms.scale[0];
  var scale = (to - from) * progress + from;

  this.transforms.scale[0] = scale;
  this.transforms.scale[1] = scale;
}
function scale(progress) {
  var to = (this.options.to !== undefined) ? this.options.to : 1;
  var from = (this.options.from !== undefined) ? this.options.from : this.transforms.scale[0];
  var scale = (to - from) * progress + from;

  this.transforms.scale[0] = scale;
  this.transforms.scale[1] = scale;
}
function scale ( progress ) { var to = ( this . options . to !== undefined ) ? this . options . to : 1 ; var from = ( this . options . from !== undefined ) ? this . options . from : this . transforms . scale [ 0 ] ; var scale = ( to - from ) * progress + from ; this . transforms . scale [ 0 ] = scale ; this . transforms . scale [ 1 ] = scale ; }
Uniformly scale an element along both axis'.
@param {Float} progress  Current progress data of the scene, between 0 and 1.
@this {Object}
@return {void}
Uniformly scale an element along both axis .