paddingX

sets the right and left padding (applies the specified value to both sides)

number paddingX;

Example

webix.ui({
    view:"toolbar",
    paddingX:20,
    cols:[
        { view:"button", value:"Load" },
        { view:"button", value:"Save" },
        { view:"button", value:"Delete" }
    ]
});

Details

The image below shows how the script above applies the paddingX property.