PostCSS plugin to reference an SVG file and control its attributes with CSS syntax
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README.md

postcss-inline-svg Build Status

PostCSS plugin to reference an SVG file and control its attributes with CSS syntax.

@svg-load nav url(img/nav.svg) {
    fill: #cfc;
    path:nth-child(2) {
        fill: #ff0;
    }
}
.nav {
    background: svg-inline(nav);
}
.up {
    background: svg-load('img/arrow-up.svg', fill=#000, stroke=#fff);
}
.nav {
    background: url("data:image/svg+xml;charset=utf-8,%3Csvg fill='%23cfc'%3E%3Cpath d='...'/%3E%3Cpath d='...' fill='%23ff0'/%3E%3Cpath d='...'/%3E%3C/svg%3E");
}
.up {
    background: url("data:image/svg+xml;charset=utf-8,%3Csvg fill='%23000' stroke='%23fff'%3E...%3C/svg%3E");
}

PostCSS parsers allow to use different syntax (but only one syntax in one svg-load() definition):

.up {
    background: svg-load('img/arrow-up.svg', fill: #000, stroke: #fff);
}
.down {
    background: svg-load('img/arrow-down.svg', fill=#000, stroke=#fff);
}

Usage

postcss([ require('postcss-inline-svg')(options) ])

See PostCSS docs for examples for your environment.

Options

options.path

Path to resolve url.

Default: false - path will be relative to source file if it was specified.

options.removeFill

Default: false - with true removes all fill attributes before applying specified. Passed RegExp filters files by id.

options.encode(svg)

Processes svg after applying parameters. Default will be ommited if passed false.

Default:

function encode(code) {
    return code
        .replace(/%/g, '%25')
        .replace(/</g, '%3C')
        .replace(/>/g, '%3E')
        .replace(/&/g, '%26')
        .replace(/#/g, '%23');
}

options.transform(svg, path)

Transforms svg after encode function and generates url.

options.xmlns

type: boolean
default: true

Adds xmlns attribute to svg if not present

Frequently asked questions

Why svg-load() doesn't work and the color still black (or red or whatever)?

That's because svg-load() overrides attributes only in <svg> element and children inherit that color. But if there is already color on children nothing will be inherited.

For example

<svg>
    <path fill="#ff0000" d="..." />
</svg>

after inline-svg (fill: #000) will looks like

<svg fill="#000">
    <path fill="#ff0000" d="..." />
</svg>

There are three solutions: to remove that attribute (preferable), to use extended @svg-load notation or to use removeFill option.

How to optimize svg on build step?

There is a plugin. :)

You are able to add postcss-svgo in your postcss plugins list which will detect every url which contains data svg uri and minify via svgo.

postcss([
    require('postcss-inline-svg'),
    require('postcss-svgo')
])

Or if you use cssnano your svg urls already minified as cssnano includes postcss-svgo.

postcss([
    require('postcss-inline-svg'),
    require('cssnano')
])

License

MIT © Bogdan Chadkin

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