Compile files with the command npm run compile:sass.

[ConnyAll]

When I compile from the terminal, it is successful. Later, when I then open the site, this is different from the previous one. On the page I only see the sentence in the button.

I don't know where I'm wrong. Could you please help me?

[mklestil]

Where exactly are you in the course? The compile: sass works when the dev server is running. So that your site receives the current css you have to run build: css.