Pop out box beside text box
I'm working on a website with a sign-up form. I'm trying to implement an interface i've seen on a couple of websites (such as this particular one), where a user is guided to fill certain fields (like password or email)
that come with restrictions via a pop out box.
The pop-out box shows up when the field receives focus and gives some additional information about that field
, as shown in the attached image.
How is this implemented? I admire this feature and i'd love it on my website. Thanks
