Date picker position set to static rather than absolute
By default Pikaday sets the position of its calendar popup to be position: absolute
however, inexplicably, the date picker components sets position: static
. This causes problems with in-header usages as it pushes the header to expand to accommodate the calendar popup rather than overlaying.
We should investigate and either provide the option to pick which position you wish to use or resolve the underlying bug (if there is one).
We can then remove the forcing of position: absolute
as raised in gitlab!26911 (comment 306521001).