fix: 默认提供 markdown 的表格等展现样式 (#2757)

scss/components/_markdown.scss

@@ -0,0 +1,266 @@
+.#{$ns}Markdown {
+  strong {
+    font-weight: bolder;
+  }
+
+  img {
+    border-style: none;
+  }
+
+  svg:not(:root) {
+    overflow: hidden;
+  }
+
+  button:-moz-focusring,
+  [type='button']:-moz-focusring,
+  [type='reset']:-moz-focusring,
+  [type='submit']:-moz-focusring {
+    outline: 1px dotted ButtonText;
+  }
+
+  [type='checkbox'] {
+    box-sizing: border-box;
+    padding: 0;
+  }
+
+  table {
+    border-spacing: 0;
+    border-collapse: collapse;
+  }
+
+  table td,
+  table th {
+    padding: 0;
+  }
+
+  hr {
+    height: 0;
+    margin: 15px 0;
+    overflow: hidden;
+    background: transparent;
+    border: 0;
+    border-bottom: 1px solid #ddd;
+  }
+
+  hr::before {
+    display: table;
+    content: '';
+  }
+
+  hr::after {
+    display: table;
+    clear: both;
+    content: '';
+  }
+
+  p {
+    margin-top: 0;
+    margin-bottom: 10px;
+  }
+
+  blockquote {
+    margin: 0;
+  }
+
+  ul,
+  ol {
+    padding-left: 0;
+    margin-top: 0;
+    margin-bottom: 0;
+  }
+
+  ol ol,
+  ul ol {
+    list-style-type: lower-roman;
+  }
+
+  ul ul ol,
+  ul ol ol,
+  ol ul ol,
+  ol ol ol {
+    list-style-type: lower-alpha;
+  }
+
+  dd {
+    margin-left: 0;
+  }
+
+  p,
+  blockquote,
+  ul,
+  ol,
+  dl,
+  table,
+  pre {
+    margin-top: 0;
+    margin-bottom: 16px;
+  }
+
+  hr {
+    height: 4px;
+    padding: 0;
+    margin: 16px 0;
+    background-color: #e7e7e7;
+    border: 0 none;
+  }
+
+  ul:not(.dropdown-menu):not(.nav),
+  ol {
+    padding-left: 2em;
+  }
+
+  ul ul,
+  ul ol,
+  ol ol,
+  ol ul {
+    margin-top: 0;
+    margin-bottom: 0;
+  }
+
+  li > p {
+    margin-top: 16px;
+  }
+
+  dl {
+    padding: 0;
+  }
+
+  dl dt {
+    padding: 0;
+    margin-top: 16px;
+    font-size: 1em;
+    font-style: italic;
+    font-weight: bold;
+  }
+
+  dl dd {
+    padding: 0 16px;
+    margin-bottom: 16px;
+  }
+
+  blockquote {
+    padding: 0 15px;
+    color: #777;
+    border-left: 4px solid #ddd;
+  }
+
+  blockquote > :first-child {
+    margin-top: 0;
+  }
+
+  blockquote > :last-child {
+    margin-bottom: 0;
+  }
+
+  table {
+    display: block;
+    width: 100%;
+    overflow: auto;
+    word-break: normal;
+  }
+
+  table th {
+    font-weight: bold;
+  }
+
+  table th,
+  table td {
+    padding: 6px 13px;
+    border: 1px solid #ddd;
+  }
+
+  table tr {
+    background-color: #fff;
+    border-top: 1px solid #ccc;
+  }
+
+  table tr:nth-child(2n) {
+    background-color: #f8f8f8;
+  }
+
+  @media (min-width: 1200px) {
+    img {
+      max-width: 800px;
+    }
+  }
+
+  code {
+    padding: 0;
+    padding-top: 0.2em;
+    padding-bottom: 0.2em;
+    margin: 0;
+    background-color: rgba(0, 0, 0, 0.04);
+    border-radius: 3px;
+  }
+
+  code:before,
+  code:after {
+    letter-spacing: -0.2em;
+    content: '\00a0';
+  }
+
+  pre > code {
+    padding: 0;
+    margin: 0;
+    word-break: normal;
+    white-space: pre;
+    background: transparent;
+    border: 0;
+  }
+
+  .highlight {
+    margin-bottom: 16px;
+  }
+
+  .highlight pre,
+  pre {
+    padding: 16px;
+    overflow: auto;
+    line-height: 1.45;
+    background-color: #f7f7f7;
+    border-radius: 3px;
+  }
+
+  .highlight pre {
+    margin-bottom: 0;
+    word-break: normal;
+  }
+
+  pre {
+    word-wrap: normal;
+  }
+
+  pre code {
+    display: inline;
+    max-width: initial;
+    padding: 0;
+    margin: 0;
+    overflow: initial;
+    line-height: inherit;
+    word-wrap: normal;
+    background-color: transparent;
+    border: 0;
+  }
+
+  pre code:before,
+  pre code:after {
+    content: normal;
+  }
+
+  kbd {
+    display: inline-block;
+    padding: 3px 5px;
+    line-height: 10px;
+    color: #555;
+    vertical-align: middle;
+    background-color: #fcfcfc;
+    border: solid 1px #ccc;
+    border-bottom-color: #bbb;
+    border-radius: 3px;
+    box-shadow: inset 0 -1px 0 #bbb;
+  }
+
+  hr {
+    border-bottom-color: #eee;
+  }
+}

scss/themes/_common.scss

@@ -106,5 +106,6 @@
 @import '../components/form/icon-picker';
 @import '../components/form/form';
 @import '../components/anchor-nav';
+@import '../components/markdown';
 
 @import '../utilities';