v- smerti

$css = file_get_contents("http://generals.mobi/styles/main.css");
preg_match_all('/url\("(.+?)"\)/', $css, $arr); 
foreach ($arr as $e) {
    $e = preg_replace('/url\("/', "", $e);
    $e = preg_replace('/"\)/', "", $e);
    print_r($e);
}

<input type="text" value="" name="login" class="input" placeholder="Имя"     required="required" pattern="^(?: [\x{0020}-\x{1F9FF}){1,16}$" title="не более 16 символов">