Laravel 5 where to place and how to access image inside css -

in laravel 5, in directory should store images (for backgrounds) , how access inside css file. css file on public/css directory. i've tried place image in public/images , public/assets/images didn't work , couldn't access image directly web browser.

in css can access images, when in public/images, like

../images/imgename.jpg 

in blade template can use like

{{ asset("images/imagename.jpg") }}