The struggle continues. The harder it gets, the more efforts I am ready to put in. I will never give up especially with strong support from good people lie @saboin, @Bestkizito and @megadrive and also @Tekraze.
So now I can comfortably do a CSS and I am happy about this.
And I would be starting java Script soon.

The above picture is basically about background... And if you want to make your background beautiful with multiple colors, it has to be gradients and its looks pretty amazing.

This picture is show how someone can add a background picture and other things such as the positions and so on.

The picture above shows how a div can either be fixed, absolute, sticky or relative.

The above picture can has grid,, columns and so on. These can help you put a beautiful design on your CSS document.