Integration of html with three.js

Any ideas for how to integrate three.js with the rest of a html and css and javascript website. I just began to test and study three.js, and wonder if it is possible to integrate. or is a three.js window a big webGL player like the Unity Game Engine window?

if you just have a single thing and you want to place it somewhere, or some kind of html menu or overlay on top of or below your scene, no problem at all because <canvas> is a regular dom element, you can place anywhere relatively or absolutely with just csss.

it only gets complex if you have multiple views, because doing that with multiple canvases isn’t feasible. something like this: View tracking - CodeSandbox for that you would need gl.skissor which cuts the canvas into pieces.