Possible data attributes from impress.js

gistfile1.txt

        * `data-x`, `data-y`, `data-z` - they define the position of **the center** of step element on
            the canvas in pixels; their default value is 0;
        * `data-rotate-x`, `data-rotate-y`, 'data-rotate-z`, `data-rotate` - they define the rotation of
            the element around given axis in degrees; their default value is 0; `data-rotate` and `data-rotate-z`
            are exactly the same;
        * `data-scale` - defines the scale of step element; default value is 1
        
        These values are used by impress.js in CSS transformation functions, so for more information consult
        CSS transfrom docs: https://developer.mozilla.org/en/CSS/transform