Sandbox::https://github.com/sinithwar/chat-example/blob/master/index.html

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<!doctype html>

<html>

<head>

<title>Socket.IO chat</title>

<style>

* { margin: 0; padding: 0; box-sizing: border-box; }

body { font: 13px Helvetica, Arial; }

form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }

form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }

form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }

#messages { list-style-type: none; margin: 0; padding: 0; }

#messages li { padding: 5px 10px; }

#messages li:nth-child(odd) { background: #eee; }

</style>

</head>

<body>

</form>

var socket = io();

$('form').submit(function(){

socket.emit('chat message', $('#m').val());

$('#m').val('');

return false;

});

socket.on('chat message', function(msg){

$('#messages').append($('<li>').text(msg));

});

</script>

</body>

</html>