They are animated neon buttons for your website etc. There are three buttons located at the top of the left corner.
Here is how the buttons and the animation looks like:
Usage
[First of all, you have to download the ZIP-file and extract this file. Or you clone this file or do it as you want , that's up to you. ]
Then you can use this code for example for you website or even for your app and for many other things. Furthermore, you can also redesign and edit the buttons according to your preferences and plans. For example: change color, change speed etc.