change color of a text in php with echo

I use Sambroadcaster

change color of a text in php with echo

this is the code:

<span id="currently-playing-title"><?php echo $currentSong->artist_title;; ?></span><?php if ($currentSong->isRequested) echo "[Request]"; ?>

This is the text that i want to change the color [Request]

The next code is:

<?php if($comingSong->isRequested): ?>[Request]

In this line i want also change the color of the text [Request]

In the css there is no rule al the text colors are white

Any idea?

I try to find a solution in the css file but there is no rule herfore