• The table boundary has a border set by the table styling

td {border:dashed blue 6pt}
th {border:solid red 4pt}
table {border:dotted green 3pt}

• Note only one border so collapsed borders is the default
• Outer border should be defined by the border of the cells
• Wrong in IE6, IE7 but right in IE8, Firefox, Opera, Safari and Chrome
• In the separate borders model can only set borders on cells and the whole table
• Precedence is complicated as borders can be given for td and th, tr, col, colgroup, table
• Most prominent wins or if equally prominent the order above. See HTML 4.01 for precise definition.