drupal/core/modules/ckeditor5/css/quickedit-override.css

.quickedit-editable,
.quickedit-editing.ck.ck-editor__editable_inline {
  top: inherit !important;
  left: inherit !important;
  margin-bottom: inherit !important;
}
.quickedit-editing.ck.ck-editor__editable_inline > :first-child {
  margin-top: inherit;
}