hint that that checks if protocol relative URLs are used

hint for best practices related to usage of the X-UA-Compatible meta tag and response header

hint that that checks if a web app manifest file was specified and it exists

Invalidate the use of CSS inline styles in HTML

hint for best practices related to the apple-touch-icons

An evented streaming XML parser in JavaScript

hint for best practices related to the meta charset

this hint checks if the HTML is using the most modern DOCTYPE.

Basic configuration for the CodeMirror6 code editor.

CodeMirror component for React.

A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.

Themes for CodeMirror.

Ignore content display via HTML comments, Shown in GitHub readme, excluded in HTML.

A React component for Autocomplete hint

New syntax to add attributes to Markdown.

Alerts are a Markdown extension based on the blockquote syntax that you can use to emphasize critical information.

Rewrite element with rehype.

Copy to clipboard.

React component preview markdown text in web browser. The minimal amount of CSS to replicate the GitHub Markdown style.

JSON viewer for react.