jQuery Button
Set the "roundedCorners" property of the jQWidgets Button.
by jqwidgets
HTML
<script src="https://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.bootstrap.css">
<button id="Button">Click me</button>
JavaScript
$("#Button").jqxButton({
theme: 'bootstrap',
width: 150,
height: 35,
roundedCorners: 'all'
});