ethereum-org-website/src/styles/codeblock.css at d361f6b06d625a0c8aed29e3c9d332debbc13a72 · ethereum/ethereum-org-website · GitHub

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/* SHIKI CODEBLOCK STYLES
   Drives the highlighted output from <Codeblock />. Shiki emits CSS variables
   (--shiki-light / --shiki-dark) so the theme switch happens without
   re-highlighting on the client. */

.codeblock-shiki .shiki,
.codeblock-shiki .shiki span {
  color: var(--shiki-light);
  background-color: transparent;
}

.dark .codeblock-shiki .shiki,
.dark .codeblock-shiki .shiki span {
  color: var(--shiki-dark);
  background-color: transparent;
}

.codeblock-shiki .shiki,
.codeblock-shiki .shiki code {
  font-size: 0.8125rem;
  line-height: 1.55;
}

.codeblock-shiki .shiki {
  margin: 0;
  padding: 0.875rem 1rem;
  width: fit-content;
  min-width: 100%;
  overflow: visible;
  tab-size: 2;
}

/* When corner UI is overlaid, give the first line headroom so it never sits
   underneath the language watermark / copy button. */
.codeblock-shiki.has-corner .shiki {
  padding-top: 1.75rem;
}

/* Trim shiki's trailing empty line. */
.codeblock-shiki .shiki .line:last-child:has(> span:empty:only-child),
.codeblock-shiki .shiki .line:last-child:empty {
  display: none;
}

/* Line numbers via CSS counter. Real disabled-color column with a hairline
   inner separator — readable for keyboard users, still recedes visually. */
.codeblock-shiki.line-numbers .shiki code {
  counter-reset: shiki-line;
}

.codeblock-shiki.line-numbers .shiki .line::before {
  counter-increment: shiki-line;
  content: counter(shiki-line);
  display: inline-block;
  width: 1.5rem;
  padding-inline-end: 0.75rem;
  margin-inline-end: 1rem;
  border-inline-end: 1px solid hsla(var(--border-low-contrast));
  text-align: end;
  color: hsla(var(--disabled));
  user-select: none;
  font-variant-numeric: tabular-nums;
}

/* Collapsed surface: cap the code surface and flatten its bottom corners so
   the expander row can sit flush beneath it. */
.codeblock-shiki.is-collapsed > [data-code-surface] {
  max-height: calc((1.5rem * 8) + 1.75rem);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

/* Fade overlay riding just above the expander row: dissolves the cut line of
   code into the surface tint instead of hard-clipping it. */
.codeblock-shiki.is-collapsed::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 1.875rem;
  height: 2.75rem;
  background: linear-gradient(
    to bottom,
    transparent,
    hsla(var(--background-highlight))
  );
  pointer-events: none;
  z-index: 1;
}

/* Bottom inline expander — replaces the corner "Show all" button. Shares the
   code surface tint so it reads as one continuous region. */
.codeblock-shiki .codeblock-expander {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  width: 100%;
  padding-block: 0.5rem 0.625rem;
  font-size: 0.75rem;
  line-height: 1;
  color: hsla(var(--body-medium));
  background: hsla(var(--background-highlight));
  border-radius: 0 0 0.375rem 0.375rem;
  cursor: pointer;
  transition: color 120ms ease-out;
}

.codeblock-shiki .codeblock-expander:hover {
  color: hsla(var(--primary));
}

.codeblock-shiki .codeblock-expander:focus-visible {
  outline: 2px solid hsla(var(--primary));
  outline-offset: 2px;
}