2.1.114 [CSS-Level2-2009] Section 17.6, Borders

V0279:

The specification states:

 ‘border-collapse’
  
 Value:                 collapse | separate | inherit
 Initial:               separate
 Applies to:            'table' and 'inline-table' elements
 Inherited:             yes
 Percentages:           N/A
 Media:                 visual
 Computed value:        as specified
  
 This property selects a table's border model. The value 'separate' selects the 
 separated borders border model. The value 'collapse' selects the collapsing borders 
 model. The models are described below. 

Quirks Mode and IE7 Mode (All Versions)

The table and inline-table elements are not supported.