README

Splits stylesheets that go beyond the IE limit of 4096 selectors. See this MSDN blog post for more information about this.

Installation

Use composer

Usage

The default max selectors is 4095.

$splitter = new \CssSplitter\Splitter();
// Load your css file
$css = file_get_contents('styles.css');

// Skip the first part as the Internet Explorer interprets your css until it reaches the limit
$selector_count = $splitter->countSelectors($css) - 4095;
// Calculate how many additional parts we need to create
$additional_part_count =  ceil($selector_count / 4095);

if($additional_part_count > 0) {
	// Loop and create the additional parts
	// Add an offset of two as we are creating the css from the second part on
	for($part = 2; $part < $additional_part_count + 2; $part++) {
		// Create or update the css files
		file_put_contents('styles_'. $part .'.css', $splitter->split($css, $part));
	}
}

Credits & License

Original inspiration came from the Ruby gem CssSplitter.

Uses the MIT license.