Not my problem. The entire point of HTML is that the server sends files and I have a client that decides how to interpret them. I may be using a browser that is

Not my problem. The entire point of HTML is that the server sends files and I have a client that decides how to interpret them. I may be using a browser that is set to display larger fonts for my poor eyesight, or I may be using a mobile browser that decides to use different CSS, or I may be using Lynx that doesn't show images, or I may be using a browser that displays some images and not others based on a blacklist. It's not up to the server to determine.