Failing CSS on a Views' Admin

Support requests shouldn't contain stuff like: Field A should look like this and be floated right. This kind of support requests can be mostly solved with CSS. The views issue queue is then not the place to ask.

Ok, close this issue, let users have a really bad day because of a poor UX with something that they will classify as unfinished alpha version crap.

On the Views' admin I got a pretty odd css behavior:

So I "fixed" it, but I'm not fond of this:

2 questions:
- Does anyone know what kind of thing could have created this defacing ?
- Is there someone sufficiently motivated to rectify this, more cleanly?

//My conf:
Firefox, last version, GNU/Linux Fedora 16 "Verne"
//My Drupal make:

; This file was auto-generated by drush make
core = 7.x

api = 2
projects[drupal][version] = "7.x"

; Modules
projects[views_bulk_operations][subdir] = "contrib"
projects[views_bulk_operations][version] = "3.0-rc1"

projects[admin_menu][subdir] = "contrib"
projects[admin_menu][version] = "3.0-rc3"

projects[ctools][subdir] = "contrib"
projects[ctools][version] = "1.0"

projects[coder][subdir] = "contrib"
projects[coder][version] = "1.0"

projects[devel][subdir] = "contrib"
projects[devel][version] = "1.3"

projects[entity][subdir] = "contrib"
projects[entity][version] = "1.0-rc3"

projects[entityreference][subdir] = "contrib"
projects[entityreference][version] = "1.0-rc3"

projects[features][subdir] = "contrib"
projects[features][version] = "1.0-rc3"

projects[feeds][subdir] = "contrib"
projects[feeds][version] = "2.0-alpha5"

projects[feeds_crawler][subdir] = "contrib"
projects[feeds_crawler][version] = "1.0-beta1"

projects[feeds_tamper][subdir] = "contrib"
projects[feeds_tamper][version] = "1.0-beta3"

projects[feeds_xpathparser][subdir] = "contrib"
projects[feeds_xpathparser][version] = "1.0-beta3"

projects[file_entity][subdir] = "contrib"
projects[file_entity][version] = "2.0-unstable6"

projects[job_scheduler][subdir] = "contrib"
projects[job_scheduler][version] = "2.0-alpha3"

projects[l10n_update][subdir] = "contrib"
projects[l10n_update][version] = "1.0-beta3"

projects[media][subdir] = "contrib"
projects[media][version] = "2.0-unstable6"

projects[media_feeds][subdir] = "contrib"
projects[media_feeds][version] = "2.0-alpha1"

projects[module_filter][subdir] = "contrib"
projects[module_filter][version] = "1.6"

projects[taxonomy_manager][subdir] = "contrib"
projects[taxonomy_manager][version] = "1.0-beta3"

projects[token][subdir] = "contrib"
projects[token][version] = "1.1"

projects[views][subdir] = "contrib"
projects[views][version] = "3.3+176-dev"

; Themes
projects[rubik][version] = "4.0-beta8"

projects[tao][version] = "3.0-beta4"