The badge is dependent and supportive component, and it can be used with avatar to create a notification avatar.
The default avatar (.e-avatar) and circle avatar (.e-avatar-circle) have been used with notification badges (.e-badge-notification) in the following sample.
<!DOCTYPE html><html lang="en"><head>
<title>Essential JS 2 for Avatar </title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Essential JS 2 for Avatar UI Control">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-base/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-layouts/styles/material.css" rel="stylesheet">
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-notifications/styles/material.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element">
<div class="sample_container avatar-badge">
<div class="avatar-block">
<!-- Card Component -->
<div class="e-card e-avatar-showcase">
<div class="e-card-content">
<div class="avatar-sub-block">
<!-- xSmall Avatar-->
<div class="e-avatar e-avatar-xsmall">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification e-badge-circle">6</span>
</div>
<div class="avatar-sub-block">
<!-- Small Avatar-->
<div class="e-avatar e-avatar-small">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification e-badge-circle">12</span>
</div>
<div class="avatar-sub-block">
<!-- Avatar-->
<div class="e-avatar">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification">46</span>
</div>
<div class="avatar-sub-block">
<!-- Large Avatar-->
<div class="e-avatar e-avatar-large">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification">82</span>
</div>
<div class="avatar-sub-block">
<!-- xLarge Avatar-->
<div class="e-avatar e-avatar-xlarge">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification">99+</span>
</div>
</div>
</div>
</div>
<div class="circleAvatar avatar-block">
<!-- Card Component -->
<div class="e-card e-avatar-showcase">
<div class="e-card-content">
<div class="avatar-sub-block">
<!-- xSmall Circle Avatar-->
<div class="e-avatar e-avatar-circle e-avatar-xsmall">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification e-badge-circle">6</span>
</div>
<div class="avatar-sub-block">
<!-- Small Circle Avatar-->
<div class="e-avatar e-avatar-circle e-avatar-small">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification e-badge-circle">12</span>
</div>
<div class="avatar-sub-block">
<!-- Circle Avatar-->
<div class="e-avatar e-avatar-circle">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification">46</span>
</div>
<div class="avatar-sub-block">
<!-- Large Circle Avatar-->
<div class="e-avatar e-avatar-circle e-avatar-large">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification">82</span>
</div>
<div class="avatar-sub-block">
<!-- xLarge Circle Avatar-->
<div class="e-avatar e-avatar-circle e-avatar-xlarge">
<img src="./pic01.png" alt="profile_pic">
</div>
<!-- Notification Badge -->
<span class="e-badge e-badge-primary e-badge-overlap e-badge-notification">99+</span>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>