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Discussion on: Possibly the Most Useful CSS Trick

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Gabriel Romualdo Author • Edited

The "display: none;" style on the button is just a possibility: it may have been better to simply make the button slightly transparent initially, and have it be opaque when the user has typed something, but of course, there are so many ways to implement this.

For example, I am currently building a password manager, which uses the placeholder-shown trick to display an arrow icon for entering the password-vault when the user has typed content into the password field.

Password Manager Placeholder Shown Demo

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Abhinav Kulshreshtha

This is more practical implementation of the example in the article. I had used javascript for this effect in past projects. Do you have codepen for this?

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Gabriel Romualdo Author • Edited

Yes, I do! codepen.io/xtrp/pen/QWWGGOQ, see line 96 of CSS to see the :not(:placeholder-shown) trick in action. As I said, this is part of a password-manager desktop application I am currently building, which is open sourced on GitHub as well.

— Gabriel

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Paweł Kowalski • Edited

According to usability experts, buttons should not appear and disappear, especially the crucial ones.

Source: smashingmagazine.com/printed-books...