Style borderSpacing Property

Set the space between cells in a table:

document.getElementById("myTable").style.borderSpacing = "20px";

Description

The borderSpacing property sets or returns the space between cells in a table.

Note: This property has no effect if borderCollapse is set to collapse.

Property
borderSpacing	Yes	9.0	Yes	Yes	Yes

Return the borderSpacing property:

object.style.borderSpacing

Set the borderSpacing property:

object.style.borderSpacing = "length length|initial|inherit"

Value	Description
length length	Specifies the space between cells in length units. Negative values are not allowed. Default value is 0. If one length value is specified, it specifies both the horizontal and vertical spacing If two length values are specified, the first sets the horizontal spacing and the second sets the vertical spacing
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit

Default Value:	0
Return Value:	A String, representing the space between cells in a table
CSS Version	CSS2

Return the space between cells in a table:

alert(document.getElementById("myTable").style.borderSpacing);

CSS tutorial: CSS Table