I'm not kidding, there are. So, even if you do use standard Style Sheet coding, they are left out in the code. Everything that standard Style Sheet commands can do can be done with HTML flags. Either make your page so that if the Style Sheet commands don't render, it doesn't matter, or use the HTML flags. Use ALT commands.
Many people surf without wanting to see images.
I do it now and again. That means just the text displays. Those are text-only browsers and you'll find links to download them in Appendix C. ALT commands place text with an image. If the browser displays the image, you can get a tool tip box to pop up using an ALT command. But for those who are not using images, the ALT commands make their surfing life so much easier by telling them where the images are.