JSFiddle - React, Tailwind, and code Playground

HTML

<h2>Testing this</h2>

<div class=container>
    <div class=content>
            Content goes here<br>
        awefawefawef<br>
        awefawefawef
    </div>
</div>

CSS

/* ----- Table of Contents

    *******************************************
    Mark Pieszak :: 7/23/2012
    *******************************************

    Table of Contents ::
    -----------------------
    I.  Helper Classes
    II. Page PRESETS
    -----------------------
*/

/*      Region Help:                                            */
/****************************************************************/
/*  Ctrl-M-O    -   Collapse all Regions                        */
/*  Ctrl-M-L    -   Open all Regions                            */
/*  Ctrl-M-M    -   (with 1 Region selected) Opens all inside   */

/*#region --- RESETS --- */

html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video {
  margin:0;
  padding:0;
  border:0;
  outline:0;
  font-size:100%;
  vertical-align:baseline;
  background:transparent;
}                  

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section { 
    display:block;
}

*:focus { outline: none;} /* chrome/safari borders */

nav ul, nav li { margin: 0px; list-style-type:none; } 

td, td img { vertical-align: top; } 
ul li { list-style-type:none; }
ol { list-style-type: decimal; }

blockquote, q { quotes:none; }

blockquote:before, blockquote:after,
q:before, q:after { content:''; content:none; }

a { margin:0; padding:0; font-size:100%; vertical-align:baseline; background:transparent; }
ins { background-color:#ff9; color:#000; text-decoration:none; }
mark { background-color:#ff9; color:#000; font-style:italic; font-weight:bold; }
del { text-decoration: line-through; }

abbr[title], dfn[title] { border-bottom:1px dotted;...

JavaScript

// mcpDESIGNS


alert($("div.content").height());
alert($("div.content").outerHeight(true));