Yes, it's not only 3 lines, you need the code that adds the class to the elements
But it's an interesting analysis of value through the chain.
Whoever payed for the highlight, funnily enough is going to end up spending more since it's going to hire earlier than the others (in principle, on average)
But they expect the $50 to pay for itself on the longer term
On the other hand, I feel like I instinctively ignore blocks with a different coloured background because they appear as being ads, so it may actually produce the desired effect (by reducing the number of applicants).
It's not just ads, but anything that visually sets itself apart from the rest of the content on the page. This includes sidebars next to articles and even headings at the top of the screen, if they look too different. It's called banner blindness https://en.wikipedia.org/wiki/Banner_blindness I had to deal with it in a product where the current location was shown in a purple tab at the top of the screen. Users would consistently get lost because, even when looking for location cues, they never read the text.
But it's an interesting analysis of value through the chain.
Whoever payed for the highlight, funnily enough is going to end up spending more since it's going to hire earlier than the others (in principle, on average)
But they expect the $50 to pay for itself on the longer term