For example, if dragging the horizontal splitter down, the position of the vertical splitter's collapse button remains unchanged. However, it shall keep in the center.
<hbox height="300px" width="100%" style="border:1px solid blue">
<vbox height="100%">
Column 1-1: a lot of text here, try to split over multiple lines.
Then we can see the effect.
<splitter collapse="after"/>
<hbox width="100%">
Column 1-2-1: more an more from one to another.
Also, simply rich. The simplest wayt to make web rich.
<splitter/>
Column 1-2-2: one two two.
</hbox>
</vbox>
<splitter collapse="before"/>
<div>
Column 2: it has a textbox: <textbox/>
And more text to it multiple lines.
</div>
<div>
Column 3: also with a textbox: <textbox/>
</div>
</hbox>
Fixed since August 23, 2010