CSS Properties: How to set the border-right-width animatable?

Last update on February 19 2024 13:03:03 (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 set the border-right-width animatable</title><!-- Sets the title of the HTML document -->
<style type="text/css"> /* Begins a CSS style block */
#mydiv { /* Defines a CSS rule for an element with the ID 'mydiv' */
width: 200px; /* Sets the width of the element to 200 pixels */
height: 150px; /* Sets the height of the element to 150 pixels */
border: 1px solid #22CF64; /* Sets the border of the element to a 1-pixel solid line with the color #22CF64 */
-webkit-animation: mymove 5s infinite; /* Applies a WebKit animation named 'mymove' to the element, lasting for 5 seconds and repeating infinitely */
animation: mymove 5s infinite; /* Applies an animation named 'mymove' to the element, lasting for 5 seconds and repeating infinitely */
}
@keyframes mymove { /* Defines a keyframe animation named 'mymove' */
50% {border-right-width: 15px;} /* Specifies the CSS properties for the element at the 50% mark of the animation, setting the width of the right border to 15 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 -->
<div id="mydiv">Border right width animatable</div><!-- Displays the text 'Border right width animatable' within a div element with the ID 'mydiv' -->
</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 styling is applied to an element with the ID 'mydiv', setting its width, height, and border properties.
An animation named 'mymove' is defined using keyframes, specifying changes to the right border width property at the 50% mark of the animation.
The paragraph element <p> displays the text "w3resource Tutorial".
A <div> element with the ID 'mydiv' displays the text "Border right width animatable". This text is animated, causing its right border width to change during the animation.

Live Demo:

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

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