Dialog/Drawer: lock scroll on the root element to prevent layout shift (#42545)
* Dialog/Drawer: lock scroll on the root element to prevent layout shift
Apply the dialog-open scroll-lock (overflow: hidden) to the root <html>
element instead of <body>, so it sits on the same element as
scrollbar-gutter: stable. Co-locating them keeps the gutter reserved
while the scrollbar is hidden, so the page no longer shifts (and the
::backdrop covers the gutter instead of leaving a white strip) when a
dialog or drawer opens. Fixes #39221, #39972, #40908, #40659.
projects / thirdparty / bootstrap.git / commit
