How to Style Half a Character with CSS and JavaScript: A Quest for Accessibility?

Partial Character Styling: A Quest for Transparency

The challenge of styling only half of a character, while keeping the text accessible, has intrigued developers for some time. This article will unravel the solution using a combination of pure CSS and JavaScript for dynamic implementation.

Solution for Single Characters

To style a single character, simply add the ".halfStyle" class to the corresponding span element. The trick lies in setting the pseudo-element's ":before" content dynamically using the "data-content" attribute. This allows you to specify the desired character for each span.

Automated Solution for Dynamic Text

For applying partial styling to dynamic text, jQuery automates the process. By iterating through the characters, it creates hidden elements for accessibility and visible elements with the ".halfStyle" class.

CSS Implementation

<code class="css">.halfStyle {
    position: relative;
    display: inline-block;
    font-size: 80px; /* or any font size */
    color: black; /* or transparent, any color */
    overflow: hidden;
    white-space: pre;
}

.halfStyle:before {
    display: block;
    z-index: 1;
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    content: attr(data-content);
    overflow: hidden;
    color: #f00;
}</code>

JavaScript Implementation

<code class="javascript">$('.textToHalfStyle').each(function() {
    var $el = $(this);
    var text = $el.text();
    var chars = text.split('');

    for (var i = 0; i < chars.length; i++) {
        $el.append('<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>');
    }
});</code>

Accessibility Preservation

This solution ensures accessibility by providing hidden text for screen readers. The invisible element preserves the original text while allowing the visible element to display the styled portion.

Conclusion

With this technique, you can achieve the desired effect of partially styling characters in text, whether static or dynamic. It utilizes a combination of CSS and JavaScript to maintain accessibility while enhancing the visual appeal of your designs.

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