jQuery Button
Set the height property of the jqxButton.
by jqwidgets
HTML
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<script src="https://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<div>
<input type="button" value="Click me" id='jqxButton' />
</div>
JavaScript
$('#jqxButton').jqxButton({
height: '40px',
theme: 'energyblue'
});