margin

defines the space around elements (applies the specified value to all elements)

number margin;

Example

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

Details

The images below show how the margin property is applied:

default behavior

custom margin

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