CSS Properties: How to define the thickness of the right border?

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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 define the thickness of the right border</title><!-- Sets the title of the HTML document -->
<style type="text/css"> /* Begins a CSS style block */
h1  { /* Defines a CSS rule for all h1 elements */
border-style: solid; /* Sets the border style of h1 elements to solid */
border-right-width: 20px; /* Sets the width of the right border of h1 elements to 20 pixels */
</style><!-- Ends the CSS style block -->
</head><!-- Ends the head section of the HTML document -->
<body><!-- Contains the content of the HTML document -->
<p>w3resource Tutorial</p><!-- Displays the text 'w3resource Tutorial' within a paragraph element -->
<h1>border right width thickness</h1><!-- Displays the text 'border right width thickness' within an h1 element -->
</body><!-- Ends the body section of the HTML document -->
</html><!-- Ends the HTML document -->


  • The HTML document structure includes essential elements such as html, head, title, style, and body.
  • CSS styling is applied to all h1 elements, setting their border style to solid and their right border width to 20 pixels using the border-right-width property.
  • The paragraph element <p> displays the text "w3resource Tutorial".
  • An h1 element displays the text "border right width thickness".

Live Demo:

See the Pen border-right-width-length-answer by w3resource (@w3resource) on CodePen.

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