Hi brotkasten and @mad 😄 ,
as far as I can see, the issue can be easily resolved by setting height: auto;
and deleting the property max-height: 100%;
of the .uk-modal-dialog
-div inside the .docs-sidebar
:
.docs-sidebar > .uk-modal-dialog {
/* max-height: 100%; */
height: auto;
/* … */
}