Responsive 12-column Grid Layout – SpaceGrid
SpaceGrid is a lightweight CSS library used to render a responsive, 12-column grid layout for your modern web design.
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Flexible Responsive Presentation & Slideshow Library – flexile.js
flexile.js is a small, easy-to-use, JavaScript library for the creation of responsive, browser-based, slideshows and presentations.
Facebook Style GIF Player & Previewer – gifsee.js
gifsee.js is a small JavaScript GIF player plugin which allows to play / stop animated GIFs with preview images. Similar to Facebook’s.
180+ Gradient Colors In Pure CSS3 – webgradients
webgradients is a lightweight CSS library which provides 180+ linear-gradient colors for backgrounds, text and anywhere you want.
Mobile-first CSS Only Loader Library – loadme
loadme is a pure CSS library which provides a collection of well-designed and CSS3 animated loaders for your mobile web applications.
Responsive CSS Only Header Navigation – Luxbar
Luxbar is a CSS library used for creating a responsive, mobile-friendly header navigation that is fully customizable via CSS classes.
Morphing Hamburger Menu With Pure CSS/CSS3
A pretty cool app/site navigation which has the ability to morph the hamburger button into a top navigation panel when clicked/taped.
Grid Overlays For Modern Web Layout Design – Graaf
Graaf is a collection of pure CSS grid overlays that display grid and measurement overlays for grid system design.
CSS Only Pinterest-like Responsive Board Layout – Boardz.css
Boardz.css is a very lightweight CSS library which lets you generate a responsive, adaptive, Pinterest board-like grid layout from normal html lists.
Pure CSS Scroll Depth Indicator
A pure CSS solution to create a fixed header progress bar indicating how far you have scrolled. Powered by @supports CSS at-rule.