SO: 16285791

http://stackoverflow.com/a/16285843/1823841

by Vetrivel Samidurai

HTML

<aside>
     <h3>Some demo text here</h3>
</aside>

CSS

div {
    text-align: center;
    vertical-align: middle;
    line-height: 90px;
    background-color: #ccc;
}

JavaScript

$('aside').replaceWith(function () {
    return $('<div/>', {
        html: $(this).html()
    });
});