When to use which units in CSS
▻https://daveredfern.com/2016/use-units-css
“When I started building websites, around 10 years ago, all I used was pixels. Percentages were reserved for only daring occasions. Now I find myself using a combination of pixels, percentages, ems, rems, vh, vw and unitless values. It sounds insane but there is logic behind the madness.”