//Starting frame
- add 'data-frame="{{number}}"' to 'loader' classed div.
    (ex: 'data-frame="5"')

//Controlling speed (default is 150)
- add 'data-delay="{{milliseconds}}"' to 'loader' classed div
    (ex: 'data-delay="500"')

//Animation range
- add 'data-begin="{{number}}"' to 'loader' classed div to specify beginning frame
    (ex: 'data-begin="3"')
- add 'data-end="{{number}}"' to 'loader' classed div to specify ending frame
    (ex: 'data-end="6"')