code: function () {
              var p = this.padding,
                  w = this.canvas.width,
                  h = this.canvas.height * 0.5;
  
              return [{
                  left: w * (this.bezier.coordinates[0]     * (1 - p[3] - p[1]) - p[3]) + "px",
                  top:  h * (1 - this.bezier.coordinates[1] * (1 - p[0] - p[2]) - p[0]) + "px"
              }, {
                  left: w * (this.bezier.coordinates[2]     * (1 - p[3] - p[1]) - p[3]) + "px",
                  top:  h * (1 - this.bezier.coordinates[3] * (1 - p[0] - p[2]) - p[0]) + "px"
              }];
          }
docs: Calculates CSS offsets for <canvas> element
  
  @return {left:string, top:string}