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Template:Sticky header/sandbox/styles.css

In this article, we will explore in detail Template:Sticky header/sandbox/styles.css, a topic of great relevance in contemporary society. Template:Sticky header/sandbox/styles.css has captured the attention of numerous experts and academics due to its significant impact on various aspects of daily life. Through meticulous analysis and the collection of empirical evidence, we will seek to shed light on the different nuances and facets that characterize Template:Sticky header/sandbox/styles.css, in order to provide a comprehensive and enriching vision on this topic. In addition, the practical and theoretical implications of Template:Sticky header/sandbox/styles.css will be examined, in order to promote a deeper and more detailed understanding of its importance in the current landscape. 
/**
 * Make first row or thead element top sticky.
 *
 * Table classes:
 * - sticky-header: sticky first row.
 * - sticky-header-multi: sticky thead; headers moved via sortable + JavaScript.
 *
 * Tested:
 * - Windows 10: (all skins) Chrome, Firefox, Edge.
 * - Android Galaxy S21 (Minerva): Chrome, Firefox.
 * - iPhone SE 2020 (Minerva): Chrome, Edge, Firefox, Opera, Safari.
 * - Wikipedia Android app.
 * - Print: Not styled.
 * - No JavaScript.
 *
 * Notes:
 * - Sortable moves to thead any header rows and (after sort) sorttop rows.
 * - Sticky gadget (.mw-sticky-header) moves to thead any wikitable header rows.
 *
 * Issues:
 * - Monobook width <=550px not sticky.
 *   Can't override:
 *   body.skin--responsive .monobook-body {overflow: auto;}
 */
@media screen {
  /**
   * Make top sticky.
   */
  .sticky-header > thead > tr:first-child,
  .sticky-header > caption + tbody > tr:first-child,
  .sticky-header > tbody:first-child > tr:first-child,
  .sticky-header-multi > thead {
    position: sticky; /* Was "static". */
    top: 0;
    z-index: 10;
  }

  /**
   * Fix scrolling data shows through sticky's transparent background.
   */
  /* Plain table headers. */
  .sticky-header:not(.wikitable),
  .sticky-header-multi:not(.wikitable) {
    background-color: white;
  }
  /* Plain table headers. */
  .sticky-header:not(.wikitable) > *, /* For thead, tbody. */
  .sticky-header:not(.wikitable) > thead > tr:first-child,
  .sticky-header:not(.wikitable) > caption + tbody > tr:first-child,
  .sticky-header:not(.wikitable) > tbody:first-child > tr:first-child,
  .sticky-header-multi:not(.wikitable) > thead,
  /* Wikitable and plain table .sorttop rows after sort. */
  .sticky-header-multi > thead {
    background-color: inherit;
  }

  /**
   * Fix missing borders due to sticky position and wikitable collapsed borders.
   * https://bugs.webkit.org/show_bug.cgi?id=128486
   *
   * Skip rare plain table separated borders, which sometimes shows scrolling
   * data through sticky's 2px "border-spacing".
   *
   * Skip very rare Timeless plain table ".mw-datatable" collapsed boarders.
   */
  .sticky-header.wikitable,
  .sticky-header-multi.wikitable {
    border-collapse: separate; /* Was "collapse". */
    border-spacing: 0;
    border-width: 0 1px 1px 0;
  }
  .sticky-header.wikitable td,
  .sticky-header.wikitable th,
  .sticky-header-multi.wikitable td,
  .sticky-header-multi.wikitable th {
    border-width: 1px 0 0 1px;
  }
  body.skin-timeless .sticky-header.wikitable,
  body.skin-timeless .sticky-header-multi.wikitable {
    border-bottom-width: 0.2em;
    padding: 0;
  }
  /* Adjust {{static row numbers}} borders. */
  .sticky-header.static-row-numbers.wikitable tr::before,
  .sticky-header-multi.static-row-numbers.wikitable tr::before {
    border-left-width: 1px;
  }
  .sticky-header.static-row-numbers.wikitable > thead > tr:first-child::before,
  .sticky-header.static-row-numbers.wikitable > caption + tbody > tr:first-child::before,
  .sticky-header.static-row-numbers.wikitable > tbody:first-child > tr:first-child::before,
  .sticky-header-multi.static-row-numbers.wikitable > thead > tr:first-child::before,
  .sticky-header-multi.static-row-numbers.wikitable > caption + tbody > tr:first-child::before,
  .sticky-header-multi.static-row-numbers.wikitable > tbody:first-child > tr:first-child::before,
  /* Sortbotton #1: all. When supported, consolidate #1-2 to tr:nth-child(1 of .sortbottom)::before */
  .sticky-header.static-row-numbers.wikitable .sortbottom::before,
  .sticky-header-multi.static-row-numbers.wikitable .sortbottom::before {
    border-top-width: 1px;
  }
  /* Sortbottom #2: all minus 1st. */
  .sticky-header.static-row-numbers.wikitable .sortbottom ~ .sortbottom::before,
  .sticky-header-multi.static-row-numbers.wikitable .sortbottom ~ .sortbottom::before {
    border-top-width: 0;
  }
  .sticky-header.static-row-numbers.wikitable > tbody > tr:not(.static-row-header)::before,
  .sticky-header-multi.static-row-numbers.wikitable > tbody > tr:not(.static-row-header)::before {
    border-bottom-width: 0 !important;
    border-right-width: 0 !important;
  }

  /**
   * Fix Timeless. Wasn't sticky when on very wide tables.
   *
   * :has() not supported, can't restrict to sticky tables.
   */
  body.skin-timeless .content-table-scrollbar,
  body.skin-timeless .overflowed,
  body.skin-timeless .overflowed .content-table {
    overflow: visible; /* Reset. */
  }
  body.skin-timeless .scroll-right.overflowed .content-table-right {
    box-shadow: none; /* Reset. */
    border-left: none; /* Reset. */
  }
}

/**
 * Adjust to other sticky elements.
 */
@media screen and (min-width: 1120px) {
  /* Vector (2022) width >=1120px: Below sticky header bar. */
  body.vector-sticky-header-visible .sticky-header > thead > tr:first-child,
  body.vector-sticky-header-visible .sticky-header > caption + tbody > tr:first-child,
  body.vector-sticky-header-visible .sticky-header > tbody:first-child > tr:first-child,
  body.vector-sticky-header-visible .sticky-header-multi > thead {
    top: 3.125rem;
  }
}
@media screen and (min-width: 851px) {
  /* Timeless width >=851px: Below sticky header bar. */
  body.skin-timeless .sticky-header > thead > tr:first-child,
  body.skin-timeless .sticky-header > caption + tbody > tr:first-child,
  body.skin-timeless .sticky-header > tbody:first-child > tr:first-child,
  body.skin-timeless .sticky-header-multi > thead {
    top: 3.51em;
  }
}

/**
 * Fix skins width <=639px (mobile) not sticky. Override to make sticky.
 *
 * Android issue: wide table horizontal scroll lost, wider page,
 * zoom out for sticky headers, unreadable when sticky.
 *
 * iPhone issue: none.
 */
@media screen and (max-width: 639px) {
  body.skin-minerva .sticky-header,
  body.skin-minerva .sticky-header-multi,
  body.skin-monobook .sticky-header,
  body.skin-monobook .sticky-header-multi,
  body.skin-vector-legacy .sticky-header,
  body.skin-vector-legacy .sticky-header-multi,
  body.skin-vector-2022 .sticky-header,
  body.skin-vector-2022 .sticky-header-multi {
    display: table; /* Was "block". */
  }
  body.skin-minerva .sticky-header > caption,
  body.skin-minerva .sticky-header-multi > caption {
    display: table-caption; /* Was "block". */
  }
}

/*
 * Fix dark mode.
 */
@media screen {
  html.skin-theme-clientpref-night body.skin-minerva .sticky-header-multi.wikitable {
    background-color: #101418;
  }
}
@media screen and (prefers-color-scheme: dark) {
  html.skin-theme-clientpref-os body.skin-minerva .sticky-header-multi.wikitable {
    background-color: #101418;
  }
}
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