Width of the tree.
Examples
JS Config
<div id="tree"></div>
<script>
var tree = $('#tree').tree({
dataSource: '/Locations/Get',
width: 500,
uiLibrary: 'bootstrap',
border: true
});
</script>
HTML Config
<div id="tree" width="500" data-source="/Locations/Get" data-ui-library="bootstrap" data-border="true"></div>
<script>
$('#tree').tree();
</script>