To set width for a separate tab header, you should use the combination of tabbar and multiview conponents while providing the necessary size in the tabbar options array.
You can try to define tabbar configuration inside the tabbar configuration object inside the tabview. But if you need to define the width of each tab header separately, you will need to enumerate the options there, which makes less sense to use the tabview.
As to the fieldset font - it’s our designer solution. Maybe the use of a section template will suit you more: http://webix.com/snippet/f2008c58
Is there a way to set Style attributes of the “body” element?
I noticed that configuration:
<body header="Long-Long header text with Layout properties">
gets translated to:
<div style="width:206.5px;" button_id="Form_MainFieldset_for_Element_1100" class="webix_item_tab webix_selected">Long-Long header text with Layout properties</div>
And if I change style attribute “width:206.5px” to “width:400.5px”, then the tab looks like it supposed to, w/o involving multiview or nested tabviews.
<div style="width:400.5px;" button_id="Form_MainFieldset_for_Element_1100" class="webix_item_tab webix_selected">Long-Long header text with Layout properties</div>
Tried to redefine “body” with protoUI and add Width attribue there, but could not figure out how to make it working.