Webteam will design your website using Responsive Design - which means that the design and content will arrange according to the size of their device, browser, settings, and other factors. Before we move a website 'live' for public viewing we test in all different size devices & browsers for viewing and make adjustments as needed. Is it important to note that, as technology changes, tweaks may be needed on your website to keep it up to date and viewing properly to your audience.
So the answer to the question 'will my website look the same to everyone' is no. Depending on the factors listed above, your website may not look them same to all people. Make sure to view your site on your mobile device vs computer vs tablet to know how you present your business to everyone.