javascript - How can I set a height, or allow a div to extend to the height of absolutely position elements within? -


i have container div absolutely positioned elements within. elements variable heights. there are, however, set number per row - rows not defined in way in markup.

i unable amend markup in way output library (masonry.js).

how can - using css or javascript (jquery available) - extend height of parent div match of children?

i have fiddle running here showing problem: http://jsfiddle.net/wzx4n/1/ - desired effect blue box 'stretch' height of red boxes. remember though, boxes variable heights, cannot loop through rows , add heights of first column (see example image below). code fiddle below:

css

.container{     position:relative;     background:blue;     min-height:100px; } .box{     position:absolute;     width:75px;     height:75px;     margin:5px 5px;     background:red;     border:1px solid black; }

html

<div class="container">     <div style="top:0; left:0px;" class="box"></div>     <div style="top:0; left:85px;" class="box"></div>     <div style="top:0; left:170px;" class="box"></div>     <div style="top:0; left:255px;" class="box"></div>     <div style="top:0; left:340px;" class="box"></div>     <div style="top:85px; left:0px;" class="box"></div>     <div style="top:85px; left:85px;" class="box"></div>     <div style="top:85px; left:170px;" class="box"></div>     <div style="top:85px; left:255px;" class="box"></div>     <div style="top:85px; left:340px;" class="box"></div>     <div style="top:170px; left:0px;" class="box"></div>     <div style="top:170px; left:85px;" class="box"></div>     <div style="top:170px; left:170px;" class="box"></div>     <div style="top:170px; left:255px;" class="box"></div>     <div style="top:170px; left:340px;" class="box"></div> </div>

looping through each row , working out height of highest element will not work element below may shorter, throwing calculation off. please see example see mean:

block example

please note: other answers question found here not applicable due variable heights on child divs, , because of lack of need pure css solution. such i not believe duplicate question , have searched other similar questions.

you can loop through child elements determine 1 furthest top:

var height = 0;  $('.container > div').each(function() {     var $this = $(this),         bottom = $this.position().top + $this.outerheight();      if(bottom > height) {         height = bottom;     } });

and set height sum of top of child , height of child.

$('.container').height(height);

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