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An MDL badge component is an onscreen notification which can be a number or an icon. It is generally used to emphasize the number of items.
MDL provides a range of CSS classes to apply various predefined visual and behavioral
enhancements to the badges. The following table lists down the available classes and their
effects.
| Sr.No. | Class Name & Description |
|---|---|
| 1 |
mdl-badge Identifies element as an MDL badge component. Required for span or link element. |
| 2 |
mdl-badge–no-background Applies open-circle effect to badge and is optional. |
| 3 |
mdl-badge–overlap Makes the badge overlap with its container and is optional. |
| 4 |
data-badge=”value” Assigns a string value to badge used as attribute; required on span or link. |
Example
The following example will help you understand the use of the mdl-badge class to add notifications to span and link elements.
The MDL classes given below will be used in this example.
-
mdl-badge − Identifies element as an MDL badge component.
-
data-badge − Assigns a string value to badge. Icons can be assigned to it using HTML symbols.
mdl_badges.htm
<html>
<head>
<script src = "https://storage.googleapis.com/code.getmdl.io/1.0.6/material.min.js">
</script>
<link rel = "stylesheet"
href = "https://storage.googleapis.com/code.getmdl.io/1.0.6/material.indigo-pink.min.css">
<link rel = "stylesheet"
href = "https://fonts.googleapis.com/icon?family=Material+Icons">
<style>
body {
padding: 20px;
background: #fafafa;
position: relative;
}
</style>
</head>
<body>
<span class = "material-icons mdl-badge" data-badge = "1">account_box</span>
<span class = "material-icons mdl-badge" data-badge = "★">account_box</span>
<span class = "mdl-badge" data-badge = "4">Unread Messages</span>
<span class = "mdl-badge" data-badge = "⚑">Rating</span>
<a href = "#" class = "mdl-badge" data-badge = "5">Inbox</a>
</body>
</html>
Result
Verify the result.
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