font-weight

To set the text to be thicker or thinner.

font-weight: <font-weight-value>;

The font-style-value can be the following:

• normal
• bolder
• bold
• initial
• inherit
• lighter

or can be in the form of numerical values from 100 to 900. The default value is normal while the default numerical value is 400.

Set the p tag to bold:

p {
  font-weight: bold;
}

Set the p tag to 600:

p {
  font-weight: 600;
}