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Inline your CSS properties into the style attribute in an html file. Useful for emails.

Inspired by the grunt plugin grunt-inline-css. Uses the inline-css module.

What's new in 3.0?

How It Works

This gulp plugin takes an html file and inlines the CSS properties into the style attribute.

/path/to/file.html:

<html>
<head>
  <style>
    p { color: red; }
  </style>
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <p>Test</p>
</body>
</html>

style.css

p {
  text-decoration: underline;
}

Output:

<html>
<head>
</head>
<body>
  <p style="color: red; text-decoration: underline;">Test</p>
</body>
</html>

What is this useful for ?

Install

Install with npm

npm install --save-dev gulp-inline-css

Usage

var gulp = require('gulp'),
    inlineCss = require('gulp-inline-css');

gulp.task('default', function() {
    return gulp.src('./*.html')
        .pipe(inlineCss())
        .pipe(gulp.dest('build/'));
});

With options:

var gulp = require('gulp'),
    inlineCss = require('gulp-inline-css');

gulp.task('default', function() {
    return gulp.src('./*.html')
        .pipe(inlineCss({
	        	applyStyleTags: true,
	        	applyLinkTags: true,
	        	removeStyleTags: true,
	        	removeLinkTags: true
        }))
        .pipe(gulp.dest('build/'));
});

Options are passed directly to inline-css.

API

inlineCss(options)

options.extraCss

Type: String
Default: ""

Extra css to apply to the file.

options.applyStyleTags

Type: Boolean
Default: true

Whether to inline styles in <style></style>.

options.applyLinkTags

Type: Boolean
Default: true

Whether to resolve <link rel="stylesheet"> tags and inline the resulting styles.

options.removeStyleTags

Type: Boolean
Default: true

Whether to remove the original <style></style> tags after (possibly) inlining the css from them.

options.removeLinkTags

Type: Boolean
Default: true

Whether to remove the original <link rel="stylesheet"> tags after (possibly) inlining the css from them.

options.url

Type: String
Default: filePath

How to resolve hrefs. Required.

options.preserveMediaQueries

Type: Boolean
Default: false

Preserves all media queries (and contained styles) within <style></style> tags as a refinement when removeStyleTags is true. Other styles are removed.

options.applyWidthAttributes

Type: Boolean
Default: false

Whether to use any CSS pixel widths to create width attributes on elements.

options.applyTableAttributes

Type: Boolean
Default: false

Whether to apply the border, cellpadding and cellspacing attributes to table elements.

options.removeHtmlSelectors

Type: Boolean
Default: false

Whether to remove the class and id attributes from the markup.

options.codeBlocks

Type: Object
Default: { EJS: { start: '<%', end: '%>' }, HBS: { start: '{{', end: '}}' } }

An object where each value has a start and end to specify fenced code blocks that should be ignored during parsing and inlining. For example, Handlebars (hbs) templates are HBS: {start: '{{', end: '}}'}. codeBlocks can fix problems where otherwise inline-css might interpret code like <= as HTML, when it is meant to be template language code. Note that codeBlocks is a dictionary which can contain many different code blocks, so don't do codeBlocks: {...} do codeBlocks.myBlock = {...}.

Special markup

data-embed

When a data-embed attribute is present on a <style></style> tag, inline-css will not inline the styles and will not remove the <style></style> tags.

This can be used to embed email client support hacks that rely on css selectors into your email templates.

cheerio options

Options to passed to cheerio.

License

MIT © Jonathan Kemp