Craft 4 Style Inliner Plugin

A Twig tag for inlining styles in a template.

Requirements

This plugin requires Craft CMS 4.0.2 or later.

Installation

To install this plugin, follow these instructions.

Open your terminal and go to your Craft project:

cd /path/to/project

Tell Composer to require the plugin:

composer require enovatedesign/craft-style-inliner

In the Control Panel, go to Settings → Plugins and click the “Install” button for Style Inliner.

Usage

Inline CSS

Use the {% inlinecss %}{% endinlinecss %} tag pair in your templates.

Input:

{% inlinecss %}
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <style type="text/css">
            h1 { color: red }
        </style>
    </head>
    <body>
        <h1>Hello, world!</h1>
    </body>
</html>
{% endinlinecss %}

Output:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <style type="text/css">
            h1 { color:red }
        </style>
    </head>
    <body>
        <h1 style="color: red;">Hello, world!</h1>
    </body>
</html>

Critical CSS

You can inline entire local CSS files in to the <head> of a document with the {% criticalcss %} twig tag.

{% extends "_layout.twig" %}

{% criticalcss 'home' %}

The .css extension is added automatically. By default the plugin prefixes the @webroot/ alias, but this can be configured in a config file. You can also switch critical CSS on and off entirely for each environment:

/config/style-inliner.php

<?php

return [
    'criticalCss' => true,
    'criticalPrefix' => '@webroot/resources/',
];