Refused to apply style from 'https://chat-app.hopefuldev.repl.co/client/index/stylesheet.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. code example
Example: stylesheet not loaded because of mime-type
put your .css file in a folder called public
in your app.js file add the following code:
app.use(express.static('public'));