If you are using rem (instead of px) as 1px solution or for other purposes, you should need a stylelint rule to enforce using rem. Thats it.

A stylelint plugin that enforces either variables ($sass, @less, var(--cssnext)), functions or custom CSS keywords (inherit, none, etc.) for property's values.

Certain property value pairs rule out other property value pairs, causing them to be ignored by the browser. For example, when an element has display: inline, any further declarations about width, height and margin-top properties will be ignored. Sometimes this is confusing: maybe you forgot that your margin-top will have no effect because the element has display: inline, so you spend a while struggling to figure out what you've done wrong. This rule protects against that confusion by ensuring that within a single rule you don't use property values that are ruled out by other property values in that same rule.

This plugin brings HTML5 placeholder attribute functionality for the TinyMCE editor in WordPress. The standard placeholder in the textarea will show when viewing in text mode, this plugin adds a <label> html element that is only shown when viewing the Visual editor.

Based on the Xdebug protocol functionality in SublimeXdebug package by Kindari.

certainlyakey starred cloud-walker/gulp-gettext

Turns on additional rules to enforce the common stylistic conventions found within a handful of CSS styleguides, including: The Idiomatic CSS Principles, GitHub's PrimerCSS Guidelines, Google's CSS Style Guide, Airbnb's Styleguide, and @mdo's Code Guide.

It favours flexibility over strictness for things like multi-line lists and single-line rulesets, and tries to avoid potentially divisive rules.

An experimental tool that turns a folder of SVG files into a single SVG Stack. It also creates some demo HTML files that use the stack with different embedding-techniques (iframe, embed, img, object, background-image).

Breadcrumb NavXT, the successor to the popular WordPress plugin Breadcrumb Navigation XT, was written from the ground up to be better than its ancestor. This plugin generates locational breadcrumb trails for your WordPress powered blog or website. These breadcrumb trails are highly customizable to suit the needs of just about any website running WordPress. The Administrative interface makes setting options easy, while a direct class access is available for theme developers and more adventurous users.

SassCast has a strict mode in which it will throw errors when failing to cast values (most notably to colors and numbers).

QLColorCode Quick Look plugin for source code with syntax highlighting.

Chrome extension that enhances the keyboard shortcuts in Google Search

Tools to create and run Drupal sites in the VVV virtual machine.

Pure Node.js Sass linting

certainlyakey starred darylldoyle/svg-sanitizer

Google Maps JavaScript API overlay object to easily add markers with an SVG image as the icon.

certainlyakey starred nextgenthemes/prism

WordPress plugin for automatic code highlighting using the Prettify library. No shortcodes, no classnames, pure awesome.

certainlyakey starred inexorabletash/polyfill