CSS
User guide
- Getting Started
Api
Concepts
Configurations
Configuring webhint
Connectors
Development flow integration
Extensions
Formatters
Hints
- Avoid CSS limits
- Avoid HTTP redirects
- axe accessibility check
- Babel configuration hint set
- Compatibility of CSS, HTML and JavaScript features
- Correct `Content-Type` header
- Correct manifest extension
- Correct viewport
- Detect CSS Reflows
- Disallowed HTTP headers
- External links disown opener
- Has web app manifest
- Highest document mode
- HTTP cache
- Leading '.' in `classList.add` or `classList.remove`
- Manifest has name
- Minify JavaScript
- Modern DOCTYPE
- No `createElement` with SVG
- No `P3P` headers
- No broken links
- No byte-order mark
- No Inline CSS Styles
- No protocol-relative URLs
- No small error pages
- No vulnerable libraries
- Nu HTML test
- Optimal compression
- Optimize images
- Performance budget
- Prefixed CSS first
- scoped-svg-styles
- Specify button type
- SSL server test
- TypeScript configuration hints set
- Unneeded HTTP headers
- Use `Strict-Transport-Security` header
- Use `X-Content-Type-Options` header
- Use Apple touch icon
- Use charset `utf-8`
- Use HTTPS
- Use subresource integrity
- Valid `Set-Cookie` header
- Valid `theme-color`
- Valid manifest
- webpack configuration hints set
Parsers
Server configurations
Troubleshoot
- Api
- Concepts
- Configurations
- Configuring webhint
- Connectors
- Development flow integration
- Extensions
- Formatters
- Hints
- Parsers
- Server configurations
- Troubleshoot
CSS (@hint/parser-css
)
The CSS
parser is built on top of PostCSS so hints can
analyze CSS
files.
This package is installed automatically by webhint:
npm install hint --save-dev |
To use it, activate it via the .hintrc
configuration file:
{
"connector": {...},
"formatters": [...],
"hints": {
...
},
"parsers": ["css"],
...
} |
Note: The recommended way of running webhint is as a devDependency
of
your project.
Events emitted
This parser
emits the following events:
parse::start::css
of typeEvent
which contains the following information:resource
: the resource we are going to parse.
parse::end::css
of typeStyleParse
which has the following information:ast
: a PostCSSRoot
object containing the AST. See the PostCSSwalk*
APIs for help navigating the AST.code
: a string containing the raw stylesheet source code.element
: anHTMLElement
reference if the source was inline in HTML;null
otherwise.resource
: the parsed resource. If the CSS is in astyle tag
and not a file, the value will refer to the HTML document containing the stylesheet.