express.static only loading to index.html

I am trying to get the static files (images, js, css) which are all inside the public folder to be available to all my routes. I am able to ONLY load them to the index.html. The management.html files does not have access to the static files, I am getting 404 error on the Chrome console.

Folder Structure:

-app/  
---index.html
---management.html
---public/
------css/
------js/
------img/

server.js:

const express = require('express');
const path = require('path');

var app = express();

app.use(express.static(path.join(__dirname, 'public')));

app.get('/', function(req, res) {
    res.sendFile('index.html', {root: __dirname })
});

app.get('/management', function(req, res) {
    res.sendFile('management.html', {root: __dirname })
});

app.listen(3000);

via Timur Ozkul