Can CSS Style Half of a Character?-JS Tutorial-php.cn

Can CSS Style Half of a Character?

Mary-Kate Olsen

Release： 2024-10-31 06:54:01

Original

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Is it Possible to Apply CSS to Half of a Character?

Problem:

How can we style only one half of a character? For instance, making one half of the letter transparent.

Previous Attempts:

Searching for methods to style half of a character
Styling part of a character using CSS or JavaScript
Applying CSS to 50% of a character

Example:

Can CSS Style Half of a Character?

Solution:

GitHub Plugin:

https://github.com/arbel/half-style

Demo:

http://jsfiddle.net/arbel/pd9yB/1694/

Features:

Pure CSS for single characters
JavaScript automation across text or multiple characters
Preserves text accessibility for screen readers

Basic Solution:

Single Character:

Half Style on text

This solution uses pure CSS and a class named .halfStyle.

Any Text:

Add the class .textToHalfStyle to the element containing the text.

JavaScript Automation:

<code class="javascript">// jQuery for automated mode
jQuery(function($) {
    var text, chars, $el, i, output;

    // Iterate over all class occurences
    $('.textToHalfStyle').each(function(idx, el) {
    $el = $(el);
    text = $el.text();
    chars = text.split('');

    // Set the screen-reader text
    $el.html('<span style="position: absolute !important;clip: rect(1px 1px 1px 1px);clip: rect(1px, 1px, 1px, 1px);">' + text + '</span>');

    // Reset output for appending
    output = '';

    // Iterate over all chars in the text
    for (i = 0; i < chars.length; i++) {
        // Create a styled element for each character and append to container
        output += '<span aria-hidden="true" class="halfStyle" data-content="' + chars[i] + '">' + chars[i] + '</span>';
    }

    // Write to DOM only once
    $el.append(output);
  });
});</code>

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CSS:

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

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

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Example Usage:

<code class="html"><script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<p>Single Characters:</p>
<span class="halfStyle" data-content="X">X</span>
<span class="halfStyle" data-content="Y">Y</span>
<span class="halfStyle" data-content="Z">Z</span>
<span class="halfStyle" data-content="A">A</span>

<hr/>
<p>Automated:</p>

<span class="textToHalfStyle">Half-style, please.</span></code>

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