CSS border-collapse

The CSS border-collapse property allows you to collapse a table's border.

By default, an HTML table uses the "separated borders model". This results in a kind of "double border" effect where there's space between the borders of each cell, as well as the edge of the table (if you also have a border on the table element).

You can use the border-collapse property to switch to the "collapsed borders model". This effectively collapses the borders into one border. So instead of seeing a "double border" you see a single border.

Syntax

Possible Values

collapse
Specifies that the collapsed border model should be used.
separate
Specifies that the separated border model should be used.

In addition, all CSS properties also accept the following CSS-wide keyword values as the sole component of their property value:

initial
Represents the value specified as the property's initial value.
inherit
Represents the computed value of the property on the element's parent.
unset
This value acts as either inherit or initial, depending on whether the property is inherited or not. In other words, it sets all properties to their parent value if they are inheritable or to their initial value if not inheritable.

General Information

Initial Value
separate
Applies To
Table-root boxes (tables or inline-table boxes).
Inherited?
Yes
Media
Visual
Animation Type
Discrete

Example Code

Official Specifications