In this chapter, you gained knowledge about styling forms. It's pretty tricky to deal with all of them but as you can see there is always some solution (for example, with additional wrappers) to do that. I recommend you to create a simple framework with which you can deal with forms. It makes you fully prepared to style forms.
In the next chapter, we will try to resolve the most repeatable classic problems with CSS, such as the centering of elements, dealing with display types and many more. It will be a show of old school and new school methodologies possible with new CSS features.