3D Keyboard Key on CSS | Now It is Reality

phil_b, this is some other meaning of the preview image. I wanted to focus on the result Keyboard Key as a Reality.
But you looked at this situation from a different side. I agree that I could create a preview image as you described above. Maybe that would be better)
Thank you for your remark and positive feedback)

Quick Sort Algorithm in JavaSript (pivot as the first element + pivot as the random element)

Kamee-Ruby, thank you so much for your positive comment. I am happy that I helped someone learn one of the most useful sorting algorithms.

3D Keyboard Key on CSS

Thank You for your comment! I glad to see that my article helps others understand CSS.

What is the difference between px, em, rem, %? The answer is here

Alexufo, thank you for your comment! I have already added the «ch» unit size to the article.

3D Keyboard Key on CSS | Now It is Reality

@johor, Wow, that 's cool!
This example is a great alternative because it contains a small amount of CSS code + perfect design of keyboard keys.
Thank you very much for your comment!

The Toggle Button on CSS

example, your example solves the problem of cross-browser compatibility, which is a disadvantage of my Toggle Button.
This is very useful. Thanks!

3D Keyboard Key on CSS | Now It is Reality

extempl, thank You for taking the time to fix some issues in Keyboard Key CSS. Now I understand that it is better to use «em» instead of «rem» for this purpose. Furthermore, Your animation after clicking is much cooler than mine.
Your version of the Keyboard Key is undoubtedly better!

3D Keyboard Key on CSS | Now It is Reality

extempl, thank you for your comment!
It will be great if you write your version of the keyboard key on CodePen and send it here in comments. Then we'll compare your keys and mine.

3D Keyboard Key on CSS

It's just a preview image, nothing more. I agree with you that it has a part of untruth. But I hadn't even thought to deceive somebody.
Now I am looking at this preview image and I got an idea to create these buttons like on the preview. Just thank you for your comment and this useful remark.
I will send the new article with buttons like on the preview image to moderation to the end of this week.