Hi Gwyn,
document.body element by default in web applications is with height set to “auto”. This means that any HTML Element with height set in percentage will not work while you do not set the body element’s height to a meaningful number. The provided Fiddle has 2 issues:
1. body element’s height is not set i.e it is “auto”.
html, body {
height: 100%;
}
2. In the HTML, the Grid’s DIV tag is inside a DIV tag with ID ‘jqxwidget’. The default height of DIV tags is ‘auto’, too.
The updated fiddle is: http://jsfiddle.net/kcw2z8nf/