<!DOCTYPE html>
<html>
<head>
	<title>WebSocket Circles</title>

	<script
	  src="https://code.jquery.com/jquery-3.4.1.min.js"
	  integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
	  crossorigin="anonymous"></script>

	<script
	  src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"
	  integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU="
	  crossorigin="anonymous"></script>

  	<style>
  		html, body, #playground, #background {
    		padding: 0px;
  			margin: 0