HTML-CSS: Sibling fade

Last update on May 28 2022 07:25:38 (UTC/GMT +8 hours)

HTML-CSS : Exercise-24 with Solution

Using HTML, CSS fades out the siblings of a hovered item.

Use a transition to animate changes to opacity.
Use the :hover and :not pseudo-class selectors to change the opacity of all elements except for the one the mouse is over to 0.5.

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 fades out the siblings of a hovered item</title>
</head>
<body>
<div class="sibling-fade">
  <span>Case 1</span> <span>Case 2</span> <span>Case 3</span>
  </div>
</body>
</html>

CSS Code:


span {
  padding: 0 16px;
  transition: opacity 0.3s;
}

.sibling-fade:hover span:not(:hover) {
  opacity: 0.5;
}

HTML-CSS Editor:

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

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HTML-CSS: Tips of the Day

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

Example:

<div id="header_id" class="header_class">
Text
</div>

#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:

<div id="header_id" class="header_class">
Text
</div>

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

The text would be white.

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