JSFiddle - React, Tailwind, and code Playground
by Amit Choudhary
HTML
<div id="upButton"> </div>
<div id="container" style="overflow: hidden;height: 40px;">
<div id="divWithExcessiveContent" >
content number 1<br/>
content number 2<br/>
content number 3<br/>
content number 4<br/>
content number 5<br/>
...
content number 100<br/>
</div>
</div>
<br>
<div id="downButton" style="border:solid 1px;width:50px;">Button</div>
JavaScript
var i = 40;
$('div#downButton').click( function() {
i = i + 20;
$('div#container').css('height', i + 'px');
});