wagtail/client/scss/components/_tabs.scss

.w-tabs {
  &__wrapper {
    @apply w-mb-8 w-overflow-x-auto w-scrollbar-thin w-flex w-items-center w-justify-between w-flex-wrap w-gap-4;
  }

  &__list {
    @apply w-flex w-pr-0 w-my-[3px] w-space-x-6 w-border-b w-border-border-furniture w-w-fit;
  }

  &__tab {
    @apply w-label-3
    w-box-border
    w-inline-flex
    w-text-text-meta
    hover:w-text-text-label
    w-whitespace-nowrap
    w-py-4
    w-font-medium
    w-relative
    after:w-block
    after:w-w-0
    after:w-h-[2px]
    after:w-bg-icon-primary
    after:w-absolute
    after:w-left-0
    after:-w-bottom-px
    after:w-transition-all
    after:forced-colors:w-h-1
    after:forced-colors:w-bg-LinkText
    hover:after:w-w-full
    hover:after:forced-colors:w-w-full
    motion-reduce:after:w-transition-none;

    &[aria-selected='true'] {
      @apply after:w-w-full w-text-text-label after:forced-colors:w-w-full;
    }
  }

  &__errors {
    @apply w-hidden
    w-absolute
    -w-mr-3
    w-py-0.5
    w-px-[0.325rem]
    w-top-1
    -w-right-1
    w-text-[0.5625rem]
    w-font-bold
    w-bg-critical-200
    w-text-white
    w-border
    w-border-surface-page
    w-rounded-[1rem];
  }

  &__list,
  .tab-content {
    @apply w-px-5 sm:w-px-10 md:w-px-20;

    // If tab contents are nested inside of a nice-padding block then don't apply the admin padding
    .nice-padding & {
      padding-inline-start: 0;
      padding-inline-end: 0;
    }
  }

  // Optional animate attr for tabs to animate in
  &[data-tabs-animate] &__panel {
    @apply motion-reduce:w-transition-none w-transition w-duration-150 w-translate-y-1 w-opacity-0;

    &.animate-in {
      @apply w-translate-y-0 w-opacity-100;
    }
  }
}