css CSS line-height The CSS property line-height [https://www.w3schools.com/cssref/pr_dim_line-height.asp] defines the amount of space used for lines, most commonly in the text. It is often confused with line spacing
css CSS Relative Font Size One of the biggest confusions in web design is caused by none other than the font-size property. The most commonly used font sizes are the pixel(px), em and rem. Alongside with this property, confusion is commonly caused by CSS Columns.