A useful UI element for a game or for preview images with information on the other side; a card that flips over in 3D.
A basic UI need is the ability to detect keypress events. This is a simple demonstration of how to do that with Javascript.
Oh no! Not the blinking again! Children, back in the early days of the web (1994) Netscape introduced a feature that caused HTML elements to blink. This JS revives it! 😈
A box that shows summary on rollover. It is handy if you want each content card height to be equal but with varying summary text length.
A (D3) circos graphic that can serve as a unique fingerprint for a particular strain of plant based on its genetic alleles.