set bolder to specific weight css code example

Example 1: change the weight of a bold font css

p {  
  font-weight: normal;
} 
a {  
  font-weight: bold;
}  
p.thick {  
  font-weight: 780;
}

Example 2: css bold weight

/* key word "lighter", "normal", "bold", or "bolder" */ 
.normal {
  font-weight: normal;
}

/* number between 100 and 900 */
.heavy {
  font-weight: 900;
}