Since the removal of the clearfix styles, overlong captions will displace subsequent input field rows. Fix the issue by replace floating label + field margin with flexbox styles. Fixes: #5535 Fixes: 8055acc9be ("luci-theme-bootstrap: overhaul styles") Signed-off-by: Jo-Philipp Wich <jo@mein.io> (cherry picked from commit 4720a025e8ab5a28541f7d066fb9b2f35ddb2cb1)