My vscode Markdown CSS

/* ------------------------------------------------------------------------ */

/* vscode 的 markdown 转 html 结构：html > body > div */

html { background-color: #fff; }

body { margin: 0; padding: 0.8em; }

body > div {
  max-width: 40em;
  margin: 0 auto;
  padding: 4em clamp(1em, calc(1em + 3 * (100vw - 45em) / 10), 5em);;
  background-color: #fff;
  box-shadow: 0 0 10px 0 #bbb;
  color:black;
  text-align:justify;
  font-size: 15.5px;
}

/* ------------------------------------------------------------------------ */

/* debug，框选当前元素 */

body > div *:not(:has(>:hover)):hover {
  outline: 1px solid #f06;
  outline-offset: 1px;
}

/* ------------------------------------------------------------------------ */

/* 字体 */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Times New Roman', 'simhei', sans-serif;
}

p,
table th,
table td,
ol li,
ul li,
details, summary {
  font-family: 'Times New Roman', 'simsun', serif;
}

pre, code {
  font-family: monospace;
}

/* ------------------------------------------------------------------------ */

/* 标题 */

h1 {
  margin: 0.5em 0;
  font-size: 2.4em;
  font-weight: normal;
  text-align: center;
  word-wrap: break-word;
}

h2 {
  margin: 0.8em 0;
  font-size: 1.2em;
}

h3,
h4,
h5,
h6 {
  margin: 0.5em 0;
  font-size: 1em;
}

/* 标题自动编号 */

h1 {                                counter-reset: h2_counter; }
h2 { counter-increment: h2_counter; counter-reset: h3_counter; }
h3 { counter-increment: h3_counter; counter-reset: h4_counter; }
h4 { counter-increment: h4_counter; counter-reset: h5_counter; }
h5 { counter-increment: h5_counter; counter-reset: h6_counter; }
h6 { counter-increment: h6_counter;                            }

h2:before { content: counter(h2_counter) "." }
h3:before { content: counter(h2_counter) "." counter(h3_counter) "." }
h4:before { content: counter(h2_counter) "." counter(h3_counter) "." counter(h4_counter) "." }
h5:before { content: counter(h2_counter) "." counter(h3_counter) "." counter(h4_counter) "." counter(h5_counter) "." }
h6:before { content: counter(h2_counter) "." counter(h3_counter) "." counter(h4_counter) "." counter(h5_counter) "." counter(h6_counter) "."; }
 
h2:before,
h3:before,
h4:before,
h5:before,
h6:before { margin-right: 1em; }

/* ------------------------------------------------------------------------ */

/* 段落 */

p {
  text-indent: 2em;
  line-height: 1.4em;
  font-size: 1em;
  margin: 0;
  word-break: break-all;
}

a      { color: #06f; text-decoration: none; }
em     { color: #666; }
strong { color: #f06; }

/* ------------------------------------------------------------------------ */

/* 三线表 */

table {
  display: table;
  min-width: 50%;
  max-width: 98%;
  width: fit-content;
  margin: 1em auto;
  border-top: 1.5px solid #000;
  border-bottom: 1.5px solid #000;
  border-collapse: collapse;
  text-align: center;
  overflow: auto;
}

table thead {
  border-bottom: 1px solid;
}

table th,
table td {
  padding: 0.1em 0.8em;
}

/* ------------------------------------------------------------------------ */

/* 列表 */

ul,
ol {
  padding-left: 2em;
  margin: 1em 0;
}

ul li, 
ol li {
  line-height: 1.4em;
  font-size: 1em;
}

/* ------------------------------------------------------------------------ */

/* 行内代码 */

code {
  border-radius: 0;
  color: #a30;
  background-color: transparent;
}
:not(pre) > code::before,
:not(pre) > code::after { content: "`"; }

/* 代码块 */

pre {
  margin: 1em 0;
  padding: 0.2em 0.5em 0.3em 0.5em;
  overflow: auto;
}

pre:has(code) { border: 1px solid #000; }
pre code {
  border: none;
  color: #000;
}

/* ------------------------------------------------------------------------ */

/* 引用 */

blockquote {
  margin: 1em 0;
  padding-left: 1.2em;
  border-left: 0.3em solid #ddd;
  background-color: transparent;
}

/* ------------------------------------------------------------------------ */

/* 图片 */

img {
  display: block;
  margin: 1em auto;
  min-width: 30%;
  max-width: 98%;
}

/* ------------------------------------------------------------------------ */

/* 分割线 */

hr {
  margin: 0.5em 0;
  border: none;
  border-bottom: 1px solid #000;
}

/* ------------------------------------------------------------------------ */

/* 折叠框 */

details {
  padding: 0.2em 0.5em;
  border: 1px solid #000;
}

details > * {
  overflow-x: auto;
  overflow-y: clip;
}

details > summary {
  margin: 0 -0.5em;
  padding: 0 0.5em;
  font-size: 1em;
  cursor: pointer;
}

details[open] > summary {
  padding-bottom: 0.2em;
  margin-bottom: 0.5em;
  border-bottom: 1px solid #000;
}

/* ------------------------------------------------------------------------ */

/* latex 公式 */

.katex {
  color: #369;
}

/* ------------------------------------------------------------------------ */

/* 代码块语法着色 */

.hljs-comment,
.hljs-quote,
.hljs-variable {
  color: #282
}

.hljs-built_in,
.hljs-keyword,
.hljs-name,
.hljs-selector-tag,
.hljs-tag {
  color: #00f;
}

.hljs-literal,
.hljs-section,
.hljs-string,
.hljs-template-tag,
.hljs-addition,
.hljs-attribute,
.hljs-title,
.hljs-template-variable,
.hljs-type {
  color: #a22
}

.hljs-deletion,
.hljs-selector-pseudo,
.hljs-meta,
.hljs-selector-attr {
  color: #29b
}

.hljs-doctag {
  color: #666
}

.hljs-attr {
  color: #f06
}

.hljs-bullet,
.hljs-link,
.hljs-symbol {
  color: #0be
}

.hljs-emphasis {
  font-style: italic
}

.hljs-strong {
  font-weight: bold;
}

/* ------------------------------------------------------------------------ */