CSS Properties: How to specify a 3D inset top border?

Last update on February 20 2024 12:26:13 (UTC/GMT +8 hours)

Solution:

HTML Code:

<!DOCTYPE html><!-- Declares the document type as HTML -->
<html><!-- Root element of the HTML document -->
<head><!-- Contains metadata about the HTML document -->
<title>How to specify a 3D inset top border</title><!-- Sets the title of the HTML document -->
<style type="text/css"> /* Begins a CSS style block */
h1 {
  border-style: solid; /* Defines a default CSS rule for h1 elements to have a solid border style */
  border-width: 10px; /* Sets the border width of h1 elements to 10 pixels */
}
h1.abc {
  border-top-style: inset; /* Sets the top border style of h1 elements with class "abc" to inset */
  border-top-color: #22CF64; /* Sets the color of the top border of h1 elements with class "abc" */
}
</style><!-- Ends the CSS style block -->
</head><!-- Ends the head section of the HTML document -->
<body><!-- Contains the content of the HTML document -->
<h1 class="abc">Inset top border style</h1><!-- Displays an h1 element with an inset top border style -->
</body><!-- Ends the body section of the HTML document -->
</html><!-- Ends the HTML document -->

Explanation:

The HTML document structure includes essential elements such as html, head, title, style, and body.
CSS rules are defined to specify different border styles for h1 elements based on their classes.
The .abc class is used to apply an inset top border style to h1 elements and set the top border color to a shade of green.
Comments were added below the code line as requested.

Live Demo:

See the Pen border-top-style-inset-answer by w3resource (@w3resource) on CodePen.

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