Remove unnecessary margin/min-width on Views exposed forms date elements

Date elements in Views exposed forms have a bunch of margin added to and minimum width imposed on them, resulting in strange positioning like that depicted in the attachment. I find myself overriding it all on every site I do. Can anyone enlighten me as to its purpose? Can it be removed?

date.css line 24:

.container-inline-date .form-item input,
.container-inline-date .form-item select,
.container-inline-date .form-item option {
  margin-right: 5px; /* LTR */
}

date.css line 86:

.date-views-filter-wrapper {
  min-width:250px;
}