css - jquery height() returning 0 value -


i have small script written center content of div setting padding top & bottom adjacent div:

$(document).ready(function() {     $('.index-block:first').css({         'padding-top': (($(window).height() - $('.cta').height()) / 4) - $('footer').height()  + "px",         'padding-bottom': (($(window).height() - $('.cta').height()) / 4) - $('footer').height()  + "px"     });     $('.search').css({         'padding-top': ($('.brand').height() - $('.search').height()) / 4 + "px",         'padding-bottom': ($('.brand').height() - $('.search').height()) / 4 + "px"     });     alert('brand: ' + $('.brand').height() + ' | search: ' + $('.search').height()); });

html:

<div class="index-block cta row">     <div class="col-md-4 brand">         <img src="/static/images/logo.png" alt="<!-- tmpl_var instance_name -->" />     </div>     <div class="col-md-8 search">         <h1>property experts<br><small>neighborhood enthusiasts</small></h1>         <hr>         <search-form></search-form>         <div class="button-group">             <a class="btn btn-primary" href="/leads/buy"><span>buying home?</span></a>             <a class="btn btn-primary" href="/leads/sell"><span>selling home?</span></a>             <a class="btn btn-primary" href="/leads/cma"><span>what's home worth?</span></a>         </div>     </div> </div>

it works fine in fiddle not in live demo. in live demo heights brand , search 0;

in site move script $(window).load(function() { $(document).ready(function() {


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