body 
{
 font-family: Arial, Helvetica, sans-serif;
 background-color: #F4F4F4;
 color: navy;
 font-size: auto
}

a {
 font-family: Verdana, Arial, Helvetica, sans-serif;
 font-size: auto;
 line-height: auto; 
} 

a:link {  
 text-decoration: none;
 color: blue;
}

a:visited { 
 text-decoration: none;
 color: blue;
}

a:hover {
 text-decoration: none;
 color: red; 
}

This is the link to call the stylesheet:
<link rel="stylesheet" typetext/css" href="../scripts/mainstyle.css">