CSS এবং JavaScript দিয়ে পপআপ চ্যাট উইন্ডো তৈরি করতে, কোডটি নিম্নরূপ -
উদাহরণ
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
* {
box-sizing: border-box;
}
.openChatBtn {
background-color: rgb(123, 28, 179);
color: white;
padding: 16px 20px;
border: none;
font-weight: 500;
font-size: 18px;
cursor: pointer;
opacity: 0.8;
position: fixed;
bottom: 23px;
right: 28px;
width: 280px;
}
.openChat {
display: none;
position: fixed;
bottom: 0;
right: 15px;
border: 3px solid #ff08086b;
z-index: 9;
}
form {
max-width: 300px;
padding: 10px;
background-color: white;
}
form textarea {
width: 100%;
font-size: 18px;
padding: 15px;
margin: 5px 0 22px 0;
border: none;
font-weight: 500;
background: #d5e7ff;
color: rgb(0, 0, 0);
resize: none;
min-height: 200px;
}
form textarea:focus {
background-color: rgb(219, 255, 252);
outline: none;
}
form .btn {
background-color: rgb(34, 197, 107);
color: white;
padding: 16px 20px;
font-weight: bold;
border: none;
cursor: pointer;
width: 100%;
margin-bottom: 10px;
opacity: 0.8;
}
form .close {
background-color: red;
}
form .btn:hover, .openChatBtn:hover {
opacity: 1;
}
</style>
</head>
<body>
<h1>Popup Chat Window Example</h1>
<h2>Click the below button to start chatting</h2>
<button class="openChatBtn" onclick="openForm()">Chat</button>
<div class="openChat">
<form>
<h1>Chat</h1>
<label for="msg"><b>Message</b></label>
<textarea placeholder="Type message.." name="msg" required></textarea>
<button type="submit" class="btn">Send</button>
<button type="button" class="btn close" onclick="closeForm()">
Close
</button>
</form>
</div>
<script>
document .querySelector(".openChatBtn") .addEventListener("click", openForm);
document.querySelector(".close").addEventListener("click", closeForm);
function openForm() {
document.querySelector(".openChat").style.display = "block";
}
function closeForm() {
document.querySelector(".openChat").style.display = "none";
}
</script>
</body>
</html> আউটপুট
উপরের কোডটি নিম্নলিখিত আউটপুট −
তৈরি করবে 
চ্যাট বোতামে ক্লিক করলে চ্যাট উইন্ডোটি পপআপ হবে -
