Normalizing Styles in CSS
It is not necessary to reset all styles to zero. There is an alternative approach called style normalization. In this approach, property values are not reset to zero, but are given specific values so that the default styles are the same and convenient in all browsers. There are ready-made files with normalization styles, for example, the popular library normalize.css.
Connect the described library to some HTML file. Look at the default appearance of the page, without your CSS styles.