<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {font-family: Arial, Helvetica, sans-serif;}
.callout {
position: fixed;
bottom: 35px;
right: 20px;
margin-left: 20px;
max-width: 300px;
}
.callout-header {
padding: 25px 15px;
background: #555;
font-size: 30px;
color: white;
}
.callout-container {
padding: 15px;
background-color: #ccc;
color: black
}
.closebtn {
position: absolute;
top: 5px;
right: 15px;
color: white;
font-size: 30px;
cursor: pointer;
}
.closebtn:hover {
color: lightgrey;
}
</style>
</head>
<body>
<h2>Callout Messages</h2>
<p>Some content text, blabla.</p>