CSS Properties: How to specify a 3D left grooved border?

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HTML Code:

<!DOCTYPE html><!-- Declaration of HTML5 document type -->
<title>How to specify a 3D left grooved border</title><!-- Title of the HTML document -->
/* CSS styling */
h1  {
  border-style: solid; /* Sets the border style for h1 elements to solid */
  border-width: 10px; /* Sets the border width for h1 elements to 10 pixels */
h1.groove {border-left-style:groove;} /* Defines a class for h1 elements with a left grooved border */
<p>w3resource Tutorial</p><!-- Paragraph content -->
<h1 class="groove">Groove left border</h1><!-- h1 element with a grooved left border -->
<p>The effect depends on the border-color value</p><!-- Additional information about the effect of grooved border -->


  • This HTML document demonstrates how to specify a 3D left grooved border for an h1 element.
  • The h1 elements have a common style with a solid border and a width of 10 pixels.
  • An additional CSS class named groove is defined to apply the grooved border style specifically to the left side.
  • The h1 element with the class groove is used to demonstrate the grooved left border.
  • The comment indicates that the visual effect of the grooved border depends on the specified border color.

Live Demo:

See the Pen border-left-style-groove-answer by w3resource (@w3resource) on CodePen.

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