Webpages look different on different operating systems?

So maybe this is a dumb question but do web pages look different based on the operating system you are running? I am developing a page on windows vista but when I view it from a windows XP machine it looks different, like the buttons, check boxes etc. When I view my page through VMware it looks almost primitive. I am using开发者_运维技巧 the same browser in all three and everything is exactly the same. Any idea how to get them to look consistent across the board?

If you use 'standard' widgets like buttons and checkboxes, etc. you will get that OS's implementation of those widgets. If you want consistency, you have to style it yourself - use images, fonts, styling, etc.

This a huge problem for an intranet app we have between PC's and mac's.

The default appearance of form elements such as buttons and check boxes is dictated by the OS. You can style them to a certain extent using CSS, but achieving 100% consistency is usually a nightmare.

This is a longshot but in VMWare, are the video settings on 32 bit or 16 bit? What is the OS in VMWare? Are the browser 'versions' the same? Can you provide a screenshot?