Thank you for all the help, I installed a plugin to allow custom JS, then used the code above and it works!! Appreciate the patience, I've still got...

@alvina thanks, I don't have the ability to use jQuery I don't think? No place to put JS code that I can see... is there a PHP alternative?

@alvina Forums are for members only so require a login to access... it's using the Simple layout if that helps.

@tutrix thanks for this, I'm looking for a CSS solution though. Aware the icon itself isn't sticky, I just mean a way to highlight the 'sticky' pos...