Quick Tip: Single Character Transforms with CSS and JS

This article demonstrates how to create a visually engaging text animation effect by individually animating characters within a sentence using CSS and JavaScript. The technique involves wrapping each character in a <span></span> tag and applying CSS animations triggered by JavaScript.

Key Concepts:

• Character-level animation: CSS animations are applied to individual characters, creating a unique effect.
• JavaScript triggering: A JavaScript function adds an "active" class to each <span></span>, initiating the CSS animation.
• CSS animations: The actual animation (e.g., a bounce effect) is defined using CSS @keyframes.
• Accessibility: The article emphasizes the importance of using aria-label and aria-hidden attributes to ensure screen readers can properly interpret the text.

Implementation Steps:

1. Include jQuery: The code relies on jQuery for DOM manipulation.

2. HTML Structure: The HTML includes sentences with the class "sentence" and a button to trigger the animation.

   <h1><span class="sentence title"></span>Fancy Slide In Text</h1>
   <h3><span class="sentence subtitle"></span>Embrace the fanciness!</h3>
   <div class="button">Click to Animate</div>

3. JavaScript (setUpCharacters): This function wraps each character of the sentences in <span> tags.

4. JavaScript (triggerCharacters): This function adds the "active" class to each <span> with a timed delay, creating the animation sequence.

5. CSS Animations: CSS @keyframes define the animation itself (e.g., bounceUp). The .active class selector targets the spans for animation.

   .sentence span { opacity: 0; position: relative; display: inline-block; }
   .sentence span.active { animation: bounceUp 600ms ease 0ms 1 normal both; }
   @keyframes bounceUp { /* ... animation definition ... */ }

6. Button Event Listener: The JavaScript binds the triggerCharacters function to a button click.

Accessibility Considerations:

The article stresses the importance of accessibility. To make the animation accessible to screen readers, the original text is preserved using aria-label on the parent element, while individual <span></span> elements are hidden from screen readers using aria-hidden="true".

The article concludes with a CodePen link demonstrating the complete code and frequently asked questions addressing common concerns about character-level animation using CSS and JavaScript. The FAQ section provides further details on animation techniques, speed control, and accessibility best practices.

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