hide text from users of a certain role

I want to make it so users who are contributors see certain information, but users who are subscribers do not see the information. In other words, I want the text to be conditional based on the logged-in user.

I can do this with styles, showing and hiding based on conditions. For example:


<?php
if ( current_user_can('contributor') ) {

echo '<style>';
echo '.internal {display:normal;}';
echo '</style>';
}

elseif (current_user_can('subscriber')) {

echo '<style>';
echo '.internal {display:none;}';
echo '</style>';
}

?>

However, if you look in the source, a subscriber can still see the hidden text.

How do I remove code from even being processed server side?