Template:OOOInfoBoxTabber/styles.css

/* OOO Infobox — Tabber wrapper (full-width lines, neat wrap)
   Version: tight-pack flex (TemplateStyles-safe) */

/* Wrapper (default right) */
.ooo-infobox-tabwrap {
  float: right;
  clear: right;
  width: 300px;                 /* keep in sync with .ooo-infobox */
  margin: 0 0 1em 1em;
}

/* Alignment overrides */
.ooo-infobox-tabwrap--left   { float: left;  clear: left;  margin: 0 1em 1em 0; }
.ooo-infobox-tabwrap--none   { float: none;                margin: 0 0 1em 0; }
.ooo-infobox-tabwrap--center { float: none; display: block; margin: 0 auto 1em; }

/* Tabs row: wrap naturally with even gaps (no row stretching) */
.ooo-infobox-tabwrap .tabber__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;                  /* both column + row gap */
  justify-content: flex-start;  /* keep items packed left */
  align-content: flex-start;
  margin: 0 0 .25rem 0;
  width: 100%;
  box-sizing: border-box;
  border: 0;
  background: none;
}

/* Remove filler used by the old layout */
.ooo-infobox-tabwrap .tabber__tabs::after { content: none; }

/* Pills */
.ooo-infobox-tabwrap .tabber__tab {
  flex: 0 0 auto;               /* natural width; don't shrink */
  min-width: 4ch;               /* small floor so tiny labels don't collapse */
  white-space: nowrap;          /* keep short labels on one line */
  text-align: center;
  line-height: 1.2;

  font-weight: 700;
  font-size: 90%;
  padding: .25rem .6rem;        /* TemplateStyles-safe padding */
  text-decoration: none;

  background: var(--background-color-neutral, #f5f5f5);
  color: var(--color-base, #202122);
  border: 1px solid #a2a9b1;    /* literal to satisfy TemplateStyles */
  border-bottom: none;
  border-radius: 12px 12px 0 0;
}

/* Active pill sits flush with the panel */
.ooo-infobox-tabwrap .tabber__tab--active {
  background: var(--background-color-base, #ffffff);
  color: var(--color-base, #202122);
  margin-bottom: -1px;          /* prevents 1px jump on activation */
}

/* Panels */
.ooo-infobox-tabwrap .tabber__panel {
  padding: 0;
  border: 0;
  background: transparent;
}

/* Mobile */
@media (max-width: 640px) {
  .ooo-infobox-tabwrap,
  .ooo-infobox-tabwrap--left,
  .ooo-infobox-tabwrap--none,
  .ooo-infobox-tabwrap--center {
    float: none;
    width: 100%;
    margin: 0 0 1em 0;
  }
}