server.js

const http = require('http')

http.createServer((request,response) => {
    let body = []
    request.on('error',(err) => {
        console.log(err)
    }).on('data',(chunk) => {
        body.push(chunk)
    }).on('end',() => {
        body = Buffer.concat(body).toString()
        console.log('body:',body);
        response.writeHead(200,{'Content-Type':'text/html'})
        response.end(`<html lang="en">
<head>
    <meta charset='UTF-8'/>
    <title>Title</title>
    <style>
        #container{
            width: 500px;
            height: 300px;
            display: flex;
            background-color: rgb(0,255,255);
        }
        
        #myid {
            width: 200px;
            height: 100px;
            background-color: rgb(255,0,0);
        }
        
        .c1 {
            flex: 1;
            background-color: rgb(0,255,0);
        }
        
        
    </style>
</head>
<body>
    <div id="container">
        <div id="myid"></div>
        <div class="c1"></div>
    </div>
</body>
</html>
`);
    })
}).listen(8089)

console.log('server star')