<?php
    use Symfony\Component\CssSelector\CssSelector,
        Nette\Diagnostics\Debugger;

    // require Composer AutoLoader
    require __DIR__ . '/vendor/autoload.php';
    Debugger::enable();
    Debugger::$maxDepth = 500;
    Debugger::$maxLen = 100;

    $selector = CssSelector::toXPath('a#outlook');
    $dom = new DOMDocument;
    $dom->loadHTML(file_get_contents(__DIR__ . '/html'));
    $finder = new DOMXPath($dom);

    $oCssParser = new Sabberworm\CSS\Parser(file_get_contents('style.css'));
    $oCssDocument = $oCssParser->parse();
    foreach ($oCssDocument->getAllRuleSets() as $ruleSet) {
        $selector = $ruleSet->getSelector();
        foreach ($finder->evaluate(CssSelector::toXPath($selector[0])) as $item) {
            $item->setAttribute('style', implode(' ', $ruleSet->getRules()));
        }
    }

    echo $dom->saveHTML();