code: function set_prefixed_property_css(element, property, value, extra) {
              element.style.cssText = prefixes.join(property + ':' + value + ';') + (extra || '');
          }
docs: set_prefixed_property_css sets the property of a specified element
  adding vendor prefixes to the NAME of the property.
  @param {Element} element
  @param {string} property The property name. This WILL be prefixed.
  @param {string} value The value of the property. This will not be prefixed.
  @param {string=} extra Additional CSS to append unmodified to the end of
  the CSS string.