I have this html line, it had one css class, but I wish to add the 2nd css class to the word Join Here!

can I do it ?

<p class="latestMembersText">Lots of new singles are joining every day...<br /> You could be one of them - </p> <p class="JoinHereTextArea"><a href="signup-stepone.php">Join Here!</a></p>

all help greatly appreciated