I was searching "collapse html", but there is more under "collapse css". I just looked at 2 now (there is 14 when I searched contents):
http://www.w3.org/TR/CSS2/box.html#collapsing-margins
In CSS, the adjoining margins of two or more boxes (which might or might not be siblings) can combine to form a single margin. Margins that combine this way are said to collapse, and the resulting combined margin is called a collapsed margin.
http://www.w3.org/TR/CSS2/text.html#egbidiwscollapse
<ltr>A <rtl> B </rtl> C</ltr>
...where the <ltr> element represents a left-to-right embedding and the <rtl> element represents a right-to-left embedding, and assuming that the 'white-space' property is set to 'normal', the above processing model would result in the following:
- The space before the B ( ) would collapse with the space after the A ( ).
- The space before the C ( ) would collapse with the space after the B ( ).
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collapse = join together?
collapse = fall under?
collapse = overlap?
collapse = all the above?
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