In the number 2, you have to try something like this: border-radius: 0px 5px 5px 0px; (Or go testing in this way until it comes out in the correct parts) (I'm sorry for my poor English)
@Nilil
Posted
Thank you for the tip, i did it but was the same result. The problem is related to ::after and ::before, but i don't remeber what i did hahaha.
No worries about the language, i'm a native spanish speaker.