Rails doesn't read css file

I have a problem , could anybody help me. My rails project doesn’t want to read the css file. This is my application.css file

 *= require_tree .
 *= require_self

.h5 {
    color: black;

body {
    background-color: pink;

My application.html.erb include tags

<%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>

at development.rb I have also included lines

config.assets.precompile = true
config.assets.precompile =  ['*.js', '*.css', '*.css.erb']

but no one changes into application.css are visible and I don’t know how to solve this problem. I had earlier installed a trix at this project but I remove it, maybe it’s connected ?