headerAltHeight

the height of the header in the collapsed state

Example

webix.ui({ 
    view:"accordion",
    rows:[{
        header:"panel 1",
        headerAlt:"panel 1 (closed)",
        headerAltHeight:22,
        body:"content 1"
    },
    { 
        header:"panel 2",
        headerAlt:"panel 2 (closed)",
        headerAltHeight:24,
        body:"content 2"
    }]
});