how to make a font lighter css code example

Example 1: antialiasing css

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
//Also use webfonts: https://www.fontsquirrel.com/

Example 2: css how to make text italic

/* I know i already made a HOW TO MAKE CSS TEXT ITALIC but here's one 
100% css */
#italic-selector {font-style:italic;}