Add browser name as class on body class ( body_class(); )

First is you must have the browser.php in your current themes. If not, click here and create a file named browser.php in your current themes.

Copy the codes below and place it into your function.php file.

add_filter('body_class','browser_name_class');
function browser_name_class($classes) {
	$browser = new Browser(); 
	$browser_detect_replace = str_replace( ' ', '-', $browser->getBrowser('browser_name:Browser:private') );
	$browser_name = strtolower( $browser_detect_replace ); 
	$classes[] = $browser_name; // browser name
	$classes[] = $browser_name.'-'.$browser->getVersion(); // browser version
	return $classes;
}