The min-width and max-width are media features that correspond to a certain media type that has been specified in the media query. The min-width specifies the minimum screen width of a specific device, meanwhile, The max-width media feature states the maximum screen width of a specific device.

The CSS data type represents a percentage value. It is often used to define a size as relative to an element's parent object. Numerous properties can use percentages, such as width , height , margin , padding , and font-size . Note: Only calculated values can be inherited.

VW is useful for creating full width elements (100%) that fill up the entire viewport's width. Of course, you can use any percentage of the viewport's width to achieve other goals, such as 50% for half the width, etc. VH is useful for creating full height elements (100%) that fill up the entire viewport's height.

EM is relative to the parent element's font size, so if you wish to scale the element's size based on its parent's size, use EM. REM is relative to the root (HTML) font size, so if you wish to scale the element's size based on the root size, no matter what the parent size is, use REM.