Is this a school assignment?
Please post your code in a “working page”. A “working page” is one that begins with <!doctype html>, ends with , and contains all of the code necessary to demonstrate the problem. You should be able to validate a “working page” and fix most of the errors before you post it, or at least be able to ask questions about them.
Images should have width and height attributes, and alt attribute. We need to know the size of the images when they are displayed.
Is this supposed to be a responsive/fluid layout?
Please write a real working web page and give us an idea what it is supposed to look like. As it stands right now, the snippit of code that you posted cannot work to anyone’s satisfaction.
The W3C CSS Validation Service
https://jigsaw.w3.org/css-validator/