It seems i have the same problem. I wrote the link in the index.html and after that the code for CSS and it still doesn't work is this a general problem or maybe the link is not valid for the css font
Make a website: CSS Styling 6/10
You can always check a link by trying to visit it with your web browser. If you get an error, then you will know that you've got a bad link.
I think it's a general problem now not even the picture doesn't work
It sounds like you might have deleted your link to your main.css file.
Can you take a screenshot of your current HTML code for your index.html file? Or copy in between the tags and paste it here so we can see where the issue may lie?