We can make the frame borders invisible by using frameborder attribute of <frame> tag.
Deprecated : FRAME tag is not supported in HTML5 ,
better to avoid.
Example:
<Frameset rows="50%,50%">
<Frame src="frame1src.html" frameborder="0">
<Frame src="frame2src.html" frameborder="0">
</Frameset>
We can also make the frameset borders invisible by using border attribute of <frameset> tag.
Example:
<Frameset rows="50%,50%" border="0">
<Frame src="frame1src.html" frameborder="0">
<Frame src="frame2src.html" frameborder="0">
</Frameset>
Note: frameborder attribute can also be specified with in the <frameset> tag to avoid mentioning for every frame within a frameset.
Example:
<Frameset rows="50%,50%" border="0" frameborder="0"> -- This makes border of all frames with in the frameset invisible.
<Frame src="frame1src.html">
<Frame src="frame2src.html">
</Frameset>