Playing with CSS Contenteditable.
Adding the contenteditable attribute to almost any HTML element makes it editable. This allows you to create richer forms.
Playing with CSS Background Clip & Text.
The CSS background clip property with a text value can add a urbane dash of creativity.
Cool CSS Radio Buttons and Checkboxes.
Hip and easy radio button and checkbox form elements styled with CSS.
Hacking CSS Writing Mode.
While meant for multilingual purposes, the CSS writing-mode property can be exploited for design.
Playing with CSS Sticky Positioning.
While the fixed and sticky position elements seems rather similar, the sticky element maintains its position only within its containing block.
The Complete Guide to Centering a Div.
With a few CSS tricks, any div can be centered, horizontally and/or vertically.
Tipue Search, a Site Search jQuery Plugin.
Free, open source, responsive and fast. It doesn't need MySQL or similar. It doesn't even need a web server.
CSS Animated Pulse Buttons using Box Shadow.
On-trend pulse buttons using CSS animations, keyframes and box-shadow.
Tipue Slide, a Sliding Panel Site Search jQuery Plugin.
Free, open source and fast. Tipue Slide only needs a browser that supports jQuery.