Goes through all direct child elements and checks whether the element's bottom passed the bottom
of this element. (The "overflow-y" of this element is set to "hidden".) If the element passes the
bottom, its height is cut off at the last visible text line and "..." is added.
During the checks, the child's "position" style is temporarily set to "relative".
This can be changed by adjusting the css variable "--hylo-test-position".
Anything but "static" should work.
Goes through all direct child elements and checks whether the element's bottom passed the bottom of this element. (The "overflow-y" of this element is set to "hidden".) If the element passes the bottom, its height is cut off at the last visible text line and "..." is added.
During the checks, the child's "position" style is temporarily set to "relative". This can be changed by adjusting the css variable "--hylo-test-position". Anything but "static" should work.