Delay showing a single item in a page

I am building a puzzle page with PHP and I want just one part of the page to be hidden and then shown (a hint for the puzzle). I know this can be easily done with JavaScript, but then the hint can be easily seen in the source code.

I have experimented with sleep() but that delays the whole page loading.

Any suggestions?

https://stackoverflow.com/questions/65746656/delay-showing-a-single-item-in-a-page January 16, 2021 at 01:07PM