You can apply a css rule to the parent div that applies the styling to the text. For example, I see that you have a parent div of the song title with a class of “track” as well as some other ones like “playable”, “show-ui”, etc.
All you need to do is target the parent div with a rule and a style as shown below, and you should be all set.
PS. When I visited your site, I noticed that the audio controls were not working. Not sure if its just me or if this is a bug. I got the track to play by clicking on the title rather than the play button.