Multiple Style Sheets

¢If some properties have been set for the same selector in different style sheets, the values will be inherited from the more specific style sheet. 

External style sheet:

h3
{
color:red;
text-align:left;
font-size:8pt;
}

Internal style sheet:

h3
{
text-align:right;
font-size:20pt;
}

Result:

If the page with the internal style sheet also links to the external style sheet the properties for h3 will be:

color:red;
text-align:right;
font-size:20pt;