The font property is a shorthand notation for specifying the five properties⎯font-family, font-style, font-variant, font-weight and font-size⎯at the same place in the style sheet. For example, the rule
h2 {font: bold italic 16px Arial, Helvetica, sans-serif;} is equivalent to h2 { font-weight: bold; font-style: italic; font-size: 16px; font-family: Arial, Helvetica, sans-serif; }