Ways to adjust the size of the parent element based on the height of a specific element

I am faced with a situation where I need to identify all elements belonging to a specific class and adjust the padding-bottom of their parent div based on the height of the matched element.

For example, consider the following structure:

<div class='A'>
    <div class='B'>
        <div class='C'>
            .........
        </div>
        <div class='D'>
            .........
        </div>
    </div>
    <div class='B'>
        <div class='C'>
            .........
        </div>
    </div>
    <div class='B'>
        <div class='C'>
            .........
        </div>
    </div>
    <div class='B'>
        <div class='D'>
      ....

The goal is to select all instances of D class objects, and then modify the padding-bottom value of their parent container (class B) by adding the height of the D object to its current padding. It's important to note that each D object has a different height, and each B can only contain one D or C Object.

In order to achieve this using jQuery, what specific code do I need?

javascriptjquerycss

Answer №1

Give this a shot:

$('div.E').each(function(){
   $(this).parent().css("marginTop", "+=" + $(this).height() +"px");
});

Check out the demonstration.

Answer №2

$(document).ready(function(){
   $('section.C').each(function(idx){
      var cWidth = $(this).width();
      var sPadding = $(this).parent().css('padding-left');
      var newPaddingLeft = parseInt(cWidth) + parseInt(sPadding);
      $(this).parent().css('padding-left', String(newPaddingLeft) + 'px');
   });
});

Answer №3

This solution addresses the issue you outlined, but it seems like some details may have been overlooked. It's possible to condense this code into a single line.

$(function() { 'use strict';
    $('.A > .D').each(function() {
        var $D = $(this);
        var $B = $D.closest('.B');

        $B.css('padding-bottom', 
            $D.height() + parseInt($B.css('padding-bottom'))
        );
    });
});

If you also want to factor in the height of the .C elements:

$(function() { 'use strict';
    $('.A > .D, .A > .C').each(function() {
        var $X = $(this);
        var $B = $X.closest('.B');

        $B.css('padding-bottom', 
            $X.height() + parseInt($B.css('padding-bottom'))
        );
    });
});

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