The correct answers to the above solution-question is by else programming basic:
if( current_user_can('administrator')) {
<!-- only administrator will see this message -->
}
else {
if( current_user_can('editor')) {
<!-- logic thinking tells here but it is not here -->
} else {
<!-- only editor but no administrator will see this message -->
?>
<style type="text/css">#perhapsDIVremovalidentifier{
display:none;
</style>
}
<?php
}}
Brief: The administrator is found, but if we push editor the administrator is as well found. So we just let the administrator pass through and identify the editor only.