我（人类）想阅读这大约 30000 个字符长的 CSS 行。
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有我可以使用的通用工具吗？
答案1
使用乐的css-tidy.raku脚本：
如果/当您安装 RakuCSS模块时，三个独立脚本会随之安装。它们是：css-gen-properties.raku、css-tidy.raku和css-inliner.raku。看：
https://raku.land/zef:dwarring/CSS
https://github.com/css-raku/CSS-raku
您可以以通常的方式使脚本可执行，或者只是将它们别名到一个方便的位置并使用~$ raku css-tidy.raku file.css.
示例输出：
dropping unknown property: text-rendering
.katex { border:currentcolor; font:normal 1.21em/1.2 KaTeX_Main, Times\ New\ Roman, serif; text-indent:0; }
.katex .katex-version::after { content:'0.13.0'; }
.katex .katex-mathml { border:0; clip:rect(1px, 1px, 1px, 1px); height:1px; overflow:hidden; padding:0; position:absolute; width:1px; }
.katex .katex-html > .newline { display:block; }
.katex .base { position:relative; white-space:nowrap; }
.katex .base, .katex .strut { display:inline-block; }
.katex .textbf { font-weight:700; }
.katex .textit { font-style:italic; }
.katex .textrm { font-family:KaTeX_Main; }
.katex .textsf { font-family:KaTeX_SansSerif; }
.katex .texttt { font-family:KaTeX_Typewriter; }
.katex .mathnormal { font-family:KaTeX_Math; font-style:italic; }
.katex .mathit { font-family:KaTeX_Main; font-style:italic; }
.katex .mathrm { font-style:normal; }
.katex .mathbf { font-family:KaTeX_Main; font-weight:700; }
.katex .boldsymbol { font-family:KaTeX_Math; font-style:italic; font-weight:700; }
.katex .amsrm, .katex .mathbb, .katex .textbb { font-family:KaTeX_AMS; }
.katex .mathcal { font-family:KaTeX_Caligraphic; }
.katex .mathfrak, .katex .textfrak { font-family:KaTeX_Fraktur; }
.katex .mathtt { font-family:KaTeX_Typewriter; }
.katex .mathscr, .katex .textscr { font-family:KaTeX_Script; }
.katex .mathsf, .katex .textsf { font-family:KaTeX_SansSerif; }
.katex .mathboldsf, .katex .textboldsf { font-family:KaTeX_SansSerif; font-weight:700; }
.katex .mathitsf, .katex .textitsf { font-family:KaTeX_SansSerif; font-style:italic; }
.katex .mainrm { font-family:KaTeX_Main; font-style:normal; }
.katex .vlist-t { border-collapse:collapse; display:inline-table; table-layout:fixed; }
.katex .vlist-r { display:table-row; }
.katex .vlist { display:table-cell; position:relative; vertical-align:bottom; }
.katex .vlist > span { display:block; height:0; position:relative; }
.katex .vlist > span > span { display:inline-block; }
.katex .vlist > span > .pstrut { overflow:hidden; width:0; }
.katex .vlist-t2 { margin-right:-2px; }
.katex .vlist-s { display:table-cell; font-size:1px; min-width:2px; vertical-align:bottom; width:2px; }
.katex .hbox { width:100%; }
.katex .thinbox { max-width:0; width:0; }
.katex .msupsub { text-align:left; }
.katex .mfrac > span > span { text-align:center; }
.katex .mfrac .frac-line { border-bottom:solid; display:inline-block; width:100%; }
.katex .hdashline, .katex .hline, .katex .mfrac .frac-line, .katex .overline .overline-line, .katex .rule, .katex .underline .underline-line { min-height:1px; }
.katex .mspace { display:inline-block; }
.katex .clap, .katex .llap, .katex .rlap { position:relative; width:0; }
.katex .clap > .inner, .katex .llap > .inner, .katex .rlap > .inner { position:absolute; }
.katex .clap > .fix, .katex .llap > .fix, .katex .rlap > .fix { display:inline-block; }
.katex .llap > .inner { right:0; }
.katex .clap > .inner, .katex .rlap > .inner { left:0; }
.katex .clap > .inner > span { margin-left:-50%; margin-right:50%; }
.katex .rule { border:0 solid; display:inline-block; position:relative; }
.katex .hline, .katex .overline .overline-line, .katex .underline .underline-line { border-bottom:solid; display:inline-block; width:100%; }
.katex .hdashline { border-bottom:dashed; display:inline-block; width:100%; }
.katex .sqrt > .root { margin-left:0.27777778em; margin-right:-0.55555556em; }
.katex .fontsize-ensurer.reset-size1.size1, .katex .sizing.reset-size1.size1 { font-size:em; }
.katex .fontsize-ensurer.reset-size1.size2, .katex .sizing.reset-size1.size2 { font-size:1.2em; }
.katex .fontsize-ensurer.reset-size1.size3, .katex .sizing.reset-size1.size3 { font-size:1.4em; }
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.katex .fontsize-ensurer.reset-size1.size6, .katex .sizing.reset-size1.size6 { font-size:2em; }
.katex .fontsize-ensurer.reset-size1.size7, .katex .sizing.reset-size1.size7 { font-size:2.4em; }
.katex .fontsize-ensurer.reset-size1.size8, .katex .sizing.reset-size1.size8 { font-size:2.88em; }
.katex .fontsize-ensurer.reset-size1.size9, .katex .sizing.reset-size1.size9 { font-size:3.456em; }
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.katex .fontsize-ensurer.reset-size1.size11, .katex .sizing.reset-size1.size11 { font-size:4.976em; }
.katex .fontsize-ensurer.reset-size2.size1, .katex .sizing.reset-size2.size1 { font-size:0.83333333em; }
.katex .fontsize-ensurer.reset-size2.size2, .katex .sizing.reset-size2.size2 { font-size:em; }
.katex .fontsize-ensurer.reset-size2.size3, .katex .sizing.reset-size2.size3 { font-size:1.16666667em; }
.katex .fontsize-ensurer.reset-size2.size4, .katex .sizing.reset-size2.size4 { font-size:1.33333333em; }
.katex .fontsize-ensurer.reset-size2.size5, .katex .sizing.reset-size2.size5 { font-size:1.5em; }
.katex .fontsize-ensurer.reset-size2.size6, .katex .sizing.reset-size2.size6 { font-size:1.66666667em; }
.katex .fontsize-ensurer.reset-size2.size7, .katex .sizing.reset-size2.size7 { font-size:2em; }
.katex .fontsize-ensurer.reset-size2.size8, .katex .sizing.reset-size2.size8 { font-size:2.4em; }
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.katex .fontsize-ensurer.reset-size2.size11, .katex .sizing.reset-size2.size11 { font-size:4.14666667em; }
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.katex .fontsize-ensurer.reset-size3.size2, .katex .sizing.reset-size3.size2 { font-size:0.85714286em; }
.katex .fontsize-ensurer.reset-size3.size3, .katex .sizing.reset-size3.size3 { font-size:em; }
.katex .fontsize-ensurer.reset-size3.size4, .katex .sizing.reset-size3.size4 { font-size:1.14285714em; }
.katex .fontsize-ensurer.reset-size3.size5, .katex .sizing.reset-size3.size5 { font-size:1.28571429em; }
.katex .fontsize-ensurer.reset-size3.size6, .katex .sizing.reset-size3.size6 { font-size:1.42857143em; }
.katex .fontsize-ensurer.reset-size3.size7, .katex .sizing.reset-size3.size7 { font-size:1.71428571em; }
.katex .fontsize-ensurer.reset-size3.size8, .katex .sizing.reset-size3.size8 { font-size:2.05714286em; }
.katex .fontsize-ensurer.reset-size3.size9, .katex .sizing.reset-size3.size9 { font-size:2.46857143em; }
.katex .fontsize-ensurer.reset-size3.size10, .katex .sizing.reset-size3.size10 { font-size:2.96285714em; }
.katex .fontsize-ensurer.reset-size3.size11, .katex .sizing.reset-size3.size11 { font-size:3.55428571em; }
.katex .fontsize-ensurer.reset-size4.size1, .katex .sizing.reset-size4.size1 { font-size:0.625em; }
.katex .fontsize-ensurer.reset-size4.size2, .katex .sizing.reset-size4.size2 { font-size:0.75em; }
.katex .fontsize-ensurer.reset-size4.size3, .katex .sizing.reset-size4.size3 { font-size:0.875em; }
.katex .fontsize-ensurer.reset-size4.size4, .katex .sizing.reset-size4.size4 { font-size:em; }
.katex .fontsize-ensurer.reset-size4.size5, .katex .sizing.reset-size4.size5 { font-size:1.125em; }
.katex .fontsize-ensurer.reset-size4.size6, .katex .sizing.reset-size4.size6 { font-size:1.25em; }
.katex .fontsize-ensurer.reset-size4.size7, .katex .sizing.reset-size4.size7 { font-size:1.5em; }
.katex .fontsize-ensurer.reset-size4.size8, .katex .sizing.reset-size4.size8 { font-size:1.8em; }
.katex .fontsize-ensurer.reset-size4.size9, .katex .sizing.reset-size4.size9 { font-size:2.16em; }
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