The UI standards mess goes all go back to when Microsoft needed Windows to look more like Mac OS. They didn't want to "copy" Apple, so they reversed the order o

The UI standards mess goes all go back to when Microsoft needed Windows to look more like Mac OS. They didn't want to "copy" Apple, so they reversed the order of UI elements like dialog and window buttons. This was fine when the platforms were separate, but it made it impossible for websites to have a uniform standard. At best, consumer websites follow Apple guidelines while enterprise, government, and SAAS sites follow Microsoft.