This is the code I have on the home page style which works. I applied it to two other styles which are not working. In Products & Default styles.
http://imagineit2.com/precast_concrete/index.php (is the link to my work)
}
#hornav > ul > li > a {
font-size: 19px;
font-weight: bold;
}

Also I need to change the font awesome color in the main menu. I tried a code you suggested for another member which did not work. Here it is:
}
.hornav ul.menu li [class^="fa-"]::before, .hornav ul.menu li [class*=" fa-"]::before {
color: blue;
}