edit logo text

hey guys

I inserted the code below under functions-enfold.php. I took it from another website of ours and changed the logotext. But how do I change font-size (make it bigger), color (to #8c5656) and font-family (open sans)?

add_filter(‘avf_logo_final_output’, ‘avf_text_logo_final_output’);

function avf_text_logo_final_output($logo) {
$link = apply_filters(‘avf_logo_link’, home_url(‘/’));
$logotext = “Wohnen am Wehrenbach”;
$logotext= “<span class=’logotext’>$logotext</span>”;
$subtext = “”;
$subtext = “<span class=’subtext’>$subtext</span>”;
$logo = “<h2 class=’logo bg-logo’>“.$logotext.”$subtext</h2>”;

return $logo;
}

Thanks for the help