Overleaf/services/web/frontend/stylesheets/components/pagination.scss

// Pagination (multiple pages)
// --------------------------------------------------
.pagination {
  display: inline-block;
  padding-left: 0;
  margin: 0;

  > li {
    display: inline-block;

    > a,
    > span,
    > button {
      position: relative;
      float: left; // Collapse white-space
      padding: var(--spacing-04) var(--spacing-06);
      line-height: var(--line-height-base);
      text-decoration: none;
      color: var(--neutral-90);
      background-color: #fff;
      border: 1px solid var(--neutral-30);
      margin-left: -1px;
      font-weight: 600;
      transition: background-color 0.15s ease-in-out;

      &:hover,
      &:focus {
        color: var(--neutral-90);
        background-color: var(--neutral-10);
        border-color: var(--neutral-30);
        text-decoration: none;
        transition: background-color 0.15s ease-in-out;
      }
    }

    &:first-child {
      > a,
      > span,
      > button {
        margin-left: 0;
      }
    }
  }

  > .active > a,
  > .active > span,
  > .active > button {
    &,
    &:hover,
    &:focus {
      z-index: 2;
      color: var(--green-70);
      background-color: var(--green-10);
      border-color: var(--neutral-30);
      cursor: default;
    }
  }

  .ellipses {
    pointer-events: none;
  }
}