how to configure CSP correctly

Hey, i was trying to use the Content Security Policy feature but i always get the (console) error that your settings has blocked a resource on self

i tied different settings with absolute path and wildcard use ( localhost/[...]/css/* ) and the default self but everything gives the same result.

can someone show me how correct settings should looks like ?

( i also use {csp-script-nonce} in inline blocks but also this result in "Refused to apply inline style because it violates the following Content Security Policy directive: "default-src 'self'". Either the 'unsafe-inline' keyword, a hash ([...]), or a nonce ('nonce-...') is required to enable inline execution. Note also that 'style-src' was not explicitly set, so 'default-src' is used as a fallback" )

Thx