Attributes for <FRAMESET ...>FRAMEBORDER = YES | 1 | NO | 0FRAMESPACING = integerBORDER = integer

The issue of what goes in between the frames is determined (somewhat confusingly) with FRAMEBORDER, FRAMESPACING, and BORDER. There are two separate issues:

To set the frames so there are no borders at all see "No Borders".

3-D Borders

FRAMEBORDER determines if there should be 3-D borders between the frames. YES, which is the default, says there should be borders. 1 is the same as YES.

FRAMEBORDER=YES gives you cool 3-D borders

NO says there should not be 3-D borders. Unfortunately, the name "FRAMEBORDER" is deceptive. With NO there are not cool 3-D borders, but there is still the default background color (usually gray or white) between the frames:

FRAMEBORDER=NO gives you strange gray borders

For example:

this code produces this
this page

How Much Space Between Frames

To control how much space is between the frames (that is, how big are the borders) use FRAMESPACING and BORDER. These are actually the same attribute; it's just that MSIE only understands FRAMESPACING and Netscape only understands BORDER. Use both to be safe:

this code produces this
this page with some unusual frame borders

No Borders

The most common use of FRAMEBORDER, FRAMESPACING, and BORDER is to create a page with no space between the borders. To do this, set NO, FRAMESPACING, and BORDER:

this code produces this
this page