2. auto keyword #

Created Tuesday 01 September 2020

• The auto keyword means that the property will be evaluated based on other constraints or the space taken by the content.
• The box model is a constraint in CSS.
• Tags have their own constraints.

e.g https://www.freecodecamp.org/learn/responsive-web-design/responsive-web-design-principles/make-an-image-responsive img { max-width:100%; // width<=100%, i.e it will cover the whole page at any size height:auto; // depending on the page width }