WTFred

output

clemherreman@macclem ~ $ php -v
PHP 5.4.3 (cli) (built: Jun  6 2012 11:03:31)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
    with Xdebug v2.2.1, Copyright (c) 2002-2012, by Derick Rethans
    
clemherreman@macclem ~ $ php test.php
Content:

.container_home .crm .bd_e{foo) repeat-x

test.css

.container_home .crm .bd_e{<?php echo 'foo'; ?>) repeat-x 

test.php

<?php
ob_start();
include('test.css');
$content = ob_get_contents();
ob_end_clean();
echo 'Content: '.PHP_EOL.PHP_EOL;

echo $content;

It even works with <?= 'foo' ?>:)