Adding custom css

[alex-polic]

Hello, I followed the steps to install wiki.js on my machine, and I got it to work. Configuration went smoothly also. In my project now I have these folders and files:
assets
node_modules
server
config.yml
package.json
wiki.js

I now need to modify the appearance for my project, so I need to add my own css and html. I've seen something about getting source code from github and making changes in client directory but I can't get it to work. Also when I try npm run dev, I get errors for fuse and fuse-box.

I will be very thankful if someone could explain to me in steps how to put custom css and html in my wiki.js project!

P.S. I have to develop my project in 1.x version of wiki.js!