Why is the height too high?

Question

JavaScript

Good afternoon.
The problem is here .
For some reason there is a vertical scroll bar.
Removed Padding and Margin from body and canvas.

21 строка в файле main.js		canvas.width = 10000;
22 строка в файле main.js		canvas.height = 10000;

27 строка в файле main.js	width = canvas.width = document.documentElement.clientWidth,
28 строка в файле main.js    height = canvas.height = document.documentElement.clientHeight;

Answer 1

Because the canvas is inline by default, make it blocky - everything will pass

Answer 2

This is normal :) Add to body

body, canvas {
    margin: 0;
    padding: 0;
    overflow: hidden;
}