[1] Description of the TABLE tag (Rob Schlüter著, ) https://dimaroan.home.xs4all.nl/htl/TAG_TABLE.html

Use the cellborder attribute to set the width of the border for table cells in pixels. By default, the border for the cells is the same as for the table. Use the border attribute to set the border width for the table.

[2] WebTV 1.2 が実装していたが 2.1 は未実装 >>1

[3] WebKit が実装していたらしい。

[4] http://developer.apple.com/safari/library/documentation/AppleApplications/Reference/SafariHTMLRef/Articles/Attributes.html#//apple_ref/doc/uid/TP40008058-cellborder

[5] Supported Attributes () https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariHTMLRef/Articles/Attributes.html#//apple_ref/doc/uid/TP40008058-cellborder

cellborder

Sets the width of the border of an individual table cell.

[6] tools/binary_size/libsupersize/template/index.html - chromium/src.git - Git at Google () https://chromium.googlesource.com/chromium/src.git/+/62.0.3178.1/tools/binary_size/libsupersize/template/index.html

<table cellspacing=0 cellborder=0 style='width:100%'>