font-weight css
/* Valeurs avec un mot-clé */
font-weight: normal;
font-weight: bold;
/* Valeurs relatives à l'élément parent */
font-weight: lighter;
font-weight: bolder;
/* Valeurs numériques */
font-weight: 1;
font-weight: 100;
font-weight: 100.6;
font-weight: 123;
font-weight: 200;
font-weight: 300;
font-weight: 321;
font-weight: 400;
font-weight: 500;
font-weight: 600;
font-weight: 700;
font-weight: 800;
font-weight: 900;
font-weight: 1000;
/* Valeurs globales */
font-weight: inherit;
font-weight: initial;
font-weight: unset;