Outer Height Define ( same height automatically anything)

$(document).ready(function() {
    // here instead of height you can write anything
    var height = $(".your-perent-class").outerHeight();
    // here this is alert for define height
    alert(height);
    // here this your inner part which you want to same height of class add here
    $(".youre-inner-class , .youre-inner-class2, .youre-inner-class2 ").css({
        "height": height
    });

    // here you can use one class default uniqe selector also
    $(".your-perent-class > * ").css({
        "height": height
    });
});