Why this CSS cube 3d menu works fine in my apple but goes wrong in my pc? -

  [please check my code] [1]   
 I did try to upload a photo but some kind of prestige is required,  
 This is my homework, so please check the code   
 
 
 Your code uses CSS properties such as  transform , which is an additional prefix for each browser Required. You probably use Chrome on Mac and Firefox on Mac; In Chrome and Safari, you need to add  -webkit -  in some properties:  
 This tool should help:  
 There your CSS code Paste it, and it will fix all prefixes.