The paragraph tag only tells the computer to end the line, insert a blank one, then start a new line. There really is no closed tag for the paragraph tag. (Not withstanding some examples in the FR sandbox)
Opera in the old days had multi-tab rows - but not since 2008-ish. Opera was eventually sold to some china firm. (I Don't know who owns it now)
Vivaldi was developed by the same people who developed Opera...go figure.
This might interest you.
https://forum.vivaldi.net/topic/101084/css-mod-multi-row-tabs-and-more
FreeRegards.
Opera went to the Chromium base, same as Vivaldi.
This might interest you. https://forum.vivaldi.net/topic/101084/css-mod-multi-row-tabs-and-more
Indeed it has, since I provided you that link! Bless God.