Hi, I’m having trouble checking how i can change the color of my page title to red when i scroll down.
If you are wanting to add css to your web page, then you will need put an html iframe on your page and put all the css, html and js for that tutorial inside it as one block of code.
Or you look at using Style to do it through Wix Corvid.
https://www.wix.com/corvid/reference/$w.Style.html