THREE.js 3d Packer. Array.
https://loading.io/css/
No-Library (pure JS), HTML, CSS, JavaScript
https://codepen.io/kevinpowell/pen/KKyOYvM
https://codepen.io/tobiasahlin/pen/OGBvqW
jQuery 3.4.1, HTML, CSS, JavaScript
https://bbbootstrap.com/snippets/multiform-vertical-progressbar-and-input-validation-63328240
https://codepen.io/nikitahl/pen/ZEjRBEE
jQuery 1.9.1, HTML, CSS, Babel + JSX
https://jqueryvalidation.org/files/demo/radio-checkbox-select-demo.html https://alistapart.com/article/axiomatic-css-and-lobotomized-owls/
https://jqueryvalidation.org/files/demo/radio-checkbox-select-demo.html
jQuery 1.9.1, HTML, CSS, JavaScript