notifications-admin/app/assets/stylesheets/_grids.scss

.govuk-grid-column-one-sixth {
  @include govuk-grid-column(one-sixth, $class: false);
}

.govuk-grid-column-five-sixths {
  @include govuk-grid-column(five-sixths, $class: false);
}

.govuk-grid-column-one-eighth {
  @include govuk-grid-column(one-eighth, $class: false);
}

.govuk-grid-column-five-eighths {
  @include govuk-grid-column(five-eighths, $class: false);
}

.govuk-grid-column-seven-eighths {
  @include govuk-grid-column(seven-eighths, $class: false);
}

%top-gutter,
.top-gutter {
  @extend %contain-floats;
  display: block;
  margin-top: govuk-spacing(6);
  clear: both;
}

.top-gutter-4-3 {
  @extend %top-gutter;
  margin-top: govuk-spacing(7);
}

.top-gutter-1-2 {
  @extend %top-gutter;
  margin-top: govuk-spacing(3);
}

.top-gutter-1-3 {
  @extend %top-gutter;
  margin-top: govuk-spacing(2);
}

.top-gutter-2-3 {
  @extend %top-gutter;
  margin-top: govuk-spacing(4);
}

.top-gutter-0 {
  margin-top: 0;
}

%bottom-gutter,
.bottom-gutter {
  @extend %contain-floats;
  margin-bottom: govuk-spacing(6);
  clear: both;
}

.bottom-gutter-2-3 {
  @extend %bottom-gutter;
  margin-bottom: govuk-spacing(4);
}

.bottom-gutter-1-2 {
  @extend %bottom-gutter;
  margin-bottom: govuk-spacing(3);
}

.bottom-gutter-1-3 {
  @extend %bottom-gutter;
  margin-bottom: govuk-spacing(2);
}

.bottom-gutter-3-2 {
  @extend %bottom-gutter;
  margin-bottom: govuk-spacing(6) * 3/2;
}

.bottom-gutter-2 {
  @extend %bottom-gutter;
  margin-bottom: govuk-spacing(9);
}

.left-gutter {
  padding-left: govuk-spacing(6);
}

.left-gutter-4-3 {
  padding-left: govuk-spacing(7);
}

.align-with-heading {
  display: block;
  text-align: center;
  margin-top: 13px;
  padding-left: 2px;
  padding-right: 2px;
}

.align-with-heading-copy {
  display: block;
  margin-top: 25px;
}

.align-with-heading-copy-right {
  display: block;
  margin: 21px 0 19px 0;
  text-align: right;
}

.align-with-big-number-hint {
  margin-top: govuk-spacing(8);
}