Units in CSS - What is the deal with em, rem, vw, pt, pc, etc.?

The article discusses the differences and applications of various CSS units such as 'em', 'rem', 'pt', 'px', 'vw', 'vh', 'vmin', 'vmax', 'ex', and 'ch'. Each of these units has unique properties that are important in designing responsive web pages. For instance, 'px' is an absolute unit that remains fixed on the page, while 'em' and 'rem' are relative units that adapt to the font size, making them more flexible in design. Additionally, CSS allows the use of media queries to apply different units depending on the screen size, significantly aiding responsiveness. It's also worth noting that the 'vw' and 'vh' units depend on the size of the browser window, giving designers more control over the layout. Understanding these units enables the creation of more efficient and aesthetically pleasing user interfaces, which is essential in modern web standards.