i've solved the challenge using pure css.

Hello my friend, I saw your code and website your doing good but lacking some of fundamentals like:

1. You are using only Non-semantic tags but you have to use semantic tags to represent the section of your websites like main, header, footer, section rather than span and div in necessary places.
2. you have to focus on designing things as given in images and improve your design knowledge and also spacing, aligning and constructing a better layout for all screen size. Your going good do not lose confidence move ahead like this and practice well as much as you can and try to learn from various resources you can well done.