Transformicons are animated symbols/buttons/icons that morph using a combination of SVG, CSS and HTML.
They also offer a builder to tweak the set.

Transformicons

“Complexify is implemented as a jQuery function that can be called on input fields. The function takes options and a callback that will be called with the results of the validation.

The valid argument passed to your callback function is a boolean that indicates whether the password met the minimum level of complexity. The complexity argument is a percentage where 100% represents a ‘very good’ password (approximately 25 random characters).”

Complexify

“NEON is very similar to YAML. The main difference is that the NEON supports “entities” (so can be used e.g. to parse phpDoc annotations) and tab characters for indentation. NEON syntax is a little simpler and the parsing is faster.”

NEON offers PHP, Javascript and Python support.

Go and play in their Sandbox

A simple, accessible and customizable HTML5, YouTube and Vimeo media player.

• Accessible – full support for VTT captions and screen readers
• Lightweight – under 10KB minified and gzipped
• Customisable – make the player look how you want with the markup you want
• Semantic – uses the right elements. <input type="range"> for volume and <progress> for progress and well,<button>s for buttons. There’s no <span> or <a href="#"> button hacks
• Responsive – as you’d expect these days
• HTML Video & Audio – support for both formats
• Embedded Video – support for YouTube and Vimeo video playback
• API – toggle playback, volume, seeking, and more
• Universal events – no messing around with Vimeo and YouTube APIs, all events are universal across formats
• Fullscreen – supports native fullscreen with fallback to “full window” modes
• i18n support – support for internationalization of controls
• No dependencies – written in “vanilla” JavaScript, no jQuery required
• SASS and LESS provided – If you like these over plain CSS

GitHub

MJML is a markup language designed to reduce the pain of coding a responsive email. Its semantic syntax makes it easy and straightforward and its rich standard components library speeds up your development time and lightens your email codebase. MJML’s open-source engine generates high quality responsive HTML compliant with best practices.

mjml