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How Can I Selectively Style Specific Lines of Text Using JavaScript and CSS?
How Can I Selectively Style Specific Lines of Text Using JavaScript and CSS?
Nov 28, 2024 pm 05:23 PM
Selecting and Styling Specific Text Lines with CSS and JavaScript
Problem:
How can you selectively target and stylize a specific line of text in a document? The :first-line CSS pseudo-element allows you to target the first line, but is there a way to select any line?
JavaScript Solution:
Since CSS alone cannot achieve this, a JavaScript solution is necessary. Consider the following approach:
$(function() {
var p = $('p');
var words = p.text().split(' '), text = '', line = 0;
$.each(words, function(i, w) {
if ($.trim(w)) text += '<span>' + w + '</span> ';
});
p.html(text);
$(window).resize(() => {
var prevTop = -15;
$('span', p).each(function() {
var top = $(this).offset().top;
if (top !== prevTop) { prevTop = top; line++; }
$(this).attr('class', 'line' + line);
});
});
$(window).resize();
});
Explanation:
This solution dynamically wraps each word in a span element, and assigns a line class to each span based on its position. When the window is resized, the script adjusts the line classes to ensure each line is appropriately identified.
How to Use:
- Include the jQuery library.
- Wrap your text in a paragraph element with an ID or class for selection.
- Add the provided script to your page.
- Resize the window to see the line classes being applied to each span element.
Additional Notes:
- Adjust the logic for specific line selection, such as selecting only even or odd lines.
- Consider potential issues with classes altering word size or width.
- Check the provided JSBin demo for a working example.
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