   transform:      'translate3d(-9999px, 0, 0)'
   margin:         '0'
   padding:        '0'
-  transformStyle: 'preserve-3d'
+  transformStyle: p3d
 
 for k, v of {Left: '0% 50%', Right: '100% 50%', Top: '50% 0%', Bottom: '50% 100%'}
   addStyle elClasses['stage' + k], perspectiveOrigin: v

    supportWarning value
    break

# CSS3 gradients are used for shading.
# Testing for them is different because they are prefixed values, not properties.
# This invokes an anonymous function to loop through vendor-prefixed linear-gradients.

  position:           'relative'
  transitionProperty: css.transformProp
  transformOrigin:    'left'
  transformStyle:     p3d
  backfaceVisibility: 'hidden'

addStyle elClasses.panelH, transformOrigin: 'top'
