tabler/site/styles/_guides.scss

.guides {
  position: relative;
  display: grid;
  gap: var(--gutter-y, 2rem) var(--gutter-x, 2rem);

  @include media-breakpoint-up(sm) {
    padding-left: $gap-6;

    &:after {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: #{$gap-6 * .5};
      border-right: 1px solid $color-border;
    }
  }

  @include media-breakpoint-up(lg) {
    grid-template-columns: repeat(2, 1fr);
    padding: 0;

    &:after {
      left: 50%;
    }
  }
}

.guide {
  position: relative;

  @include media-breakpoint-up(sm) {
    .guide-date {
      display: block;
      position: absolute;
      top: 2rem;
      z-index: 1;
      background: $color-gray;
      color: $color-muted-light;
      left: calc(4rem / -2 - 1rem);
      text-transform: uppercase;
      line-height: 1.5;
      font-size: 12px;
      text-align: center;
      width: 2rem;
      padding: 1rem 0;
    }

    &:after {
      content: '';
      width: 1rem;
      height: 1rem;
      background: $color-white;
      z-index: 1;
      position: absolute;
      top: 3.5rem;
      left: calc(-.5rem + 1px);
      border: 1px solid $color-border-light;
      transform: rotate(45deg);
      clip-path: polygon(0 0, 100% 100%, 0 100%);
    }
  }

  @include media-breakpoint-up(lg) {
    @for $i from 1 to 10 {
      &:nth-child(#{$i}) {
        grid-row: $i / #{$i + 2};
      }
    }

    .guide-date {
      left: calc(100% + calc(var(--gutter-x, 2rem) / 2) - 1rem);
    }

    &:nth-child(even) {
      .guide-date {
        left: calc(var(--gutter-x, 2rem) / -2 - 1rem);
      }
    }

    &:nth-child(odd) {
      &:after {
        transform: rotate(-135deg);
        left: calc(100% - .5rem - 1px);
      }
    }
  }
}

.guide-date {
  display: none;
}