searxng/searx/static/themes/oscar/less/logicodev/checkbox.less

// Hide element if checkbox is checked
input[type=checkbox]:checked + .label_hide_if_checked, input[type=checkbox]:checked + .label_hide_if_not_checked + .label_hide_if_checked {
  display:none;
}

// Hide element if checkbox is not checked
input[type=checkbox]:not(:checked) + .label_hide_if_not_checked, input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not_checked {
  display:none;
}