HTML-CSS: Hover underline animation

Last update on May 28 2022 07:25:45 (UTC/GMT +8 hours)

HTML-CSS : Exercise-15 with Solution

Using HTML, CSS create an animated underline effect when the user hovers over the text.

Use display: inline-block to make the underline span just the width of the text content.
Use the :after pseudo-element with width: 100% and position: absolute to place it below the content.
Use transform: scaleX(0) to initially hide the pseudo-element.
Use the :hover pseudo-class selector to apply transform: scaleX(1) and display the pseudo-element on hover.
Animate transform using transform-origin: left and an appropriate transition.
Remove the transform-origin property to make the transform originate from the center of the element.

HTML Code:

<!--License: https://bit.ly/3GjrtVF-->
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Using HTML, CSS create an animated underline effect when the user hovers over the text</title>
</head>
<body>
  <strong>Preview:</strong><br>
<p class="hover-underline-animation">Hover w3resource text to see the effect!</p>
</body>
</html>

CSS Code:

<style> 
.w3rcontainer{
   border: 1px solid #cccfdb;
   border-radius: 2px;
} 
.hover-underline-animation {
  display: inline-block;
  position: relative;
  color: #0087ca;
}

.hover-underline-animation:after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: #0087ca;
  transform-origin: bottom right;
  transition: transform 0.25s ease-out;
}

.hover-underline-animation:hover:after {
  transform: scaleX(1);
  transform-origin: bottom left;
}
</style>

HTML-CSS Editor:

See the Pen html-css-practical-exercises by w3resource (@w3resource) on CodePen.

HTML-CSS: Tips of the Day

What is the difference between id and class in CSS, and when should I use them?

Example:

#header_id {font-color:#fff} .header_class {font-color:#000}

(Note that CSS uses the prefix # for IDs and . for Classes.)

However color was an HTML 4.01 <font> tag attribute deprecated in HTML 5. In CSS there is no "font-color", the style is color so the above should read:

Example:

#header_id {color:#fff} .header_class {color:#000}

The text would be white.

Ref: https://bit.ly/39Stv4P