klammertext/sks/code/css/code.css

.code {
    font-family: var(--monospace);
}

/* A whole listing, inside its :hpos position container.  Full width by
   default so an annotated listing's comment column has a remainder to take
   (.code_comment is flex: 1); an UNANNOTATED listing is shrink-to-fit
   instead, which is what lets :hpos center or right-align it -- a
   full-width child cannot be moved within its container.  The LaTeX
   counterpart is Code.tex_place. */
.code_listing {
}

.code_listing_box {
    width: fit-content;
}

/* An annotated code listing (sks/code/code_block.py).  The same model as
   the LaTeX side in sty/code.sty: each BLOCK is a run of code lines with
   an optional comment beside it, the shaded box is as wide as that block's
   longest line, and comments sit a fixed distance from their own block
   without aligning with each other.

   align-items: center is the counterpart of LaTeX's \parbox[c] pair.  No
   vertical margin or padding anywhere in the stack: consecutive blocks
   must abut exactly, so that adjacent shaded blocks read as one region and
   the line rhythm is the same whether a line is shaded or not.  That is
   what \strut and \offinterlineskip buy on the LaTeX side; here it is just
   the absence of vertical space. */
.code_block {
    display: flex;
    align-items: center;
    margin: 0 0 0 1rem;
    padding: 0;
}

.code_caption {
    margin-left: 1rem;
    font-style: italic;
}

/* white-space: pre keeps the code's own spacing, and the shrink-to-fit
   width of an inline-block IS the block's longest line — so the shading is
   one solid rectangle with no per-line work and nothing measured.  Padding
   is horizontal only; see the note on .code_block. */
.code_text {
    display: inline-block;
    white-space: pre;
    font-family: var(--monospace);
    line-height: 1.4;
    /* No horizontal padding: the box's left edge sits ON the code column,
       where the line's own indentation begins, rather than out to the left
       of it.  LaTeX counterpart: \klcodepad 0pt. */
    padding: 0;
}

/* The comment takes what the block leaves of the containing width — the
   browser's counterpart of \dimexpr\linewidth-\klcodewidth-\klcodegap.
   min-width is the counterpart of \klcodemin: below it the comment would
   be too narrow to set prose in. */
.code_comment {
    flex: 1;
    padding-left: .75rem;
    font-family: var(--sans-serif);
    font-style: italic;
    font-size: .8rem;
    min-width: 100px;
    line-height: 1.25;
}

/* An annotated block: background only, no border.  A border would need a
   matching one on the unshaded blocks to keep the code aligned, and the
   design settled on shading alone. */
.code_border {
    background-color: rgb(100%,100%,60%);
    /* Clear space above and below a boxed block, so two boxed blocks with
       no unboxed lines between them read as two boxes rather than one.
       On the block, never on the line: the lines within a block must still
       abut, or the shading stops being a solid rectangle.  The LaTeX
       counterpart is \klboxgap in sty/code.sty. */
    margin: 2px 0;
    /* The box's own vertical margin: space inside the shading, above the
       first line and below the last.  LaTeX counterpart: \klboxpad. */
    padding-top: 2px;
    padding-bottom: 2px;
}

.code_no_border {
}