Update markdown styles, follow github styles and font family

4 files changed, 248 insertions, 100 deletions

diff --git a/public/css/extra.css b/public/css/extra.css
index 9d29cf9a..0c3e253d 100644
--- a/public/css/extra.css
+++ b/public/css/extra.css
@@ -264,7 +264,7 @@
 
 /* support japanese font */
 .markdown-body[lang^="ja"] {
-    font-family: "Helvetica Neue", Helvetica, Arial, Meiryo, "MS Gothic", "ＭＳ ゴシック", sans-serif;
+    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, "Hiragino Kaku Gothic Pro", "ヒラギノ角ゴ Pro W3", Osaka, Meiryo, "メイリオ", "MS Gothic", "ＭＳ ゴシック", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
 }
 .ui-toc-dropdown[lang^="ja"] {
     font-family: "Source Sans Pro", Helvetica, Arial, "Meiryo UI", "MS PGothic", "ＭＳ Ｐゴシック", sans-serif;
@@ -272,7 +272,7 @@
 
 /* support zh-tw font */
 .markdown-body[lang="zh-tw"] {
-    font-family: "Helvetica Neue", Helvetica, Arial, "Microsoft JhengHei", "微軟正黑", sans-serif;
+    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, "PingFang TC", "Microsoft JhengHei", "微軟正黑", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
 }
 .ui-toc-dropdown[lang="zh-tw"] {
     font-family: "Source Sans Pro", Helvetica, Arial, "Microsoft JhengHei UI", "微軟正黑UI", sans-serif;
@@ -280,7 +280,7 @@
 
 /* support zh-cn font */
 .markdown-body[lang="zh-cn"] {
-    font-family: "Helvetica Neue", Helvetica, Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
+    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", "微软雅黑", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
 }
 .ui-toc-dropdown[lang="zh-cn"] {
     font-family: "Source Sans Pro", Helvetica, Arial, "Microsoft YaHei UI", "微软雅黑UI", sans-serif;
diff --git a/public/css/github-extract.css b/public/css/github-extract.css
index 3caf247f..4d2650d4 100644
--- a/public/css/github-extract.css
+++ b/public/css/github-extract.css
@@ -1,118 +1,216 @@
 .markdown-body {
-    overflow: hidden;
+    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
     font-size: 16px;
-    line-height: 1.6;
+    line-height: 1.5;
     word-wrap: break-word;
 }
+
+.markdown-body::before {
+    display: table;
+    content: ""
+}
+
+.markdown-body::after {
+    display: table;
+    clear: both;
+    content: "";
+}
+
 .markdown-body>*:first-child {
     margin-top: 0 !important;
 }
+
 .markdown-body>*:last-child {
     margin-bottom: 0 !important;
 }
+
+.markdown-body a:not([href]) {
+    color: inherit;
+    text-decoration: none;
+}
+
 .markdown-body .absent {
     color: #c00;
 }
+
 .markdown-body .anchor {
-    display: inline-block;
-    padding-right: 2px;
-    margin-left: -18.36px;
+    float: left;
+    padding-right: 4px;
+    margin-left: -20px;
+    line-height: 1
 }
+
 .markdown-body .anchor:focus {
     outline: none;
 }
-.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4, .markdown-body h5, .markdown-body h6 {
-    margin-top: 1em;
+
+.markdown-body p,
+.markdown-body blockquote,
+.markdown-body ul,
+.markdown-body ol,
+.markdown-body dl,
+.markdown-body table,
+.markdown-body pre {
+    margin-top: 0;
     margin-bottom: 16px;
-    font-weight: bold;
-    line-height: 1.4;
 }
-.markdown-body h1 .octicon-link, .markdown-body h2 .octicon-link, .markdown-body h3 .octicon-link, .markdown-body h4 .octicon-link, .markdown-body h5 .octicon-link, .markdown-body h6 .octicon-link {
+
+.markdown-body hr {
+    height: 0.25em;
+    padding: 0;
+    margin: 24px 0;
+    background-color: #e7e7e7;
+    border: 0;
+}
+
+.markdown-body blockquote {
+    padding: 0 1em;
+    color: #777;
+    border-left: 0.25em solid #ddd;
+}
+
+.markdown-body blockquote>:first-child {
+    margin-top: 0;
+}
+
+.markdown-body blockquote>:last-child {
+    margin-bottom: 0;
+}
+
+.markdown-body kbd {
+    display: inline-block;
+    padding: 3px 5px;
+    font-size: 11px;
+    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;
+}
+
+.markdown-body .loweralpha {
+    list-style-type: lower-alpha;
+}
+
+.markdown-body h1,
+.markdown-body h2,
+.markdown-body h3,
+.markdown-body h4,
+.markdown-body h5,
+.markdown-body h6 {
+    margin-top: 24px;
+    margin-bottom: 16px;
+    font-weight: 600;
+    line-height: 1.25;
+}
+
+.markdown-body h1 .octicon-link,
+.markdown-body h2 .octicon-link,
+.markdown-body h3 .octicon-link,
+.markdown-body h4 .octicon-link,
+.markdown-body h5 .octicon-link,
+.markdown-body h6 .octicon-link {
     color: #000;
     vertical-align: middle;
     visibility: hidden;
 }
-.markdown-body h1:hover .anchor, .markdown-body h2:hover .anchor, .markdown-body h3:hover .anchor, .markdown-body h4:hover .anchor, .markdown-body h5:hover .anchor, .markdown-body h6:hover .anchor {
+
+.markdown-body h1:hover .anchor,
+.markdown-body h2:hover .anchor,
+.markdown-body h3:hover .anchor,
+.markdown-body h4:hover .anchor,
+.markdown-body h5:hover .anchor,
+.markdown-body h6:hover .anchor {
     text-decoration: none;
 }
-.markdown-body h1:hover .anchor .octicon-link, .markdown-body h2:hover .anchor .octicon-link, .markdown-body h3:hover .anchor .octicon-link, .markdown-body h4:hover .anchor .octicon-link, .markdown-body h5:hover .anchor .octicon-link, .markdown-body h6:hover .anchor .octicon-link {
+
+.markdown-body h1:hover .anchor .octicon-link,
+.markdown-body h2:hover .anchor .octicon-link,
+.markdown-body h3:hover .anchor .octicon-link,
+.markdown-body h4:hover .anchor .octicon-link,
+.markdown-body h5:hover .anchor .octicon-link,
+.markdown-body h6:hover .anchor .octicon-link {
     visibility: visible;
 }
-.markdown-body h1 tt, .markdown-body h1 code, .markdown-body h2 tt, .markdown-body h2 code, .markdown-body h3 tt, .markdown-body h3 code, .markdown-body h4 tt, .markdown-body h4 code, .markdown-body h5 tt, .markdown-body h5 code, .markdown-body h6 tt, .markdown-body h6 code {
+
+.markdown-body h1 tt,
+.markdown-body h1 code,
+.markdown-body h2 tt,
+.markdown-body h2 code,
+.markdown-body h3 tt,
+.markdown-body h3 code,
+.markdown-body h4 tt,
+.markdown-body h4 code,
+.markdown-body h5 tt,
+.markdown-body h5 code,
+.markdown-body h6 tt,
+.markdown-body h6 code {
     font-size: inherit;
 }
+
 .markdown-body h1 {
     padding-bottom: 0.3em;
-    font-size: 2.25em;
-    line-height: 1.2;
+    font-size: 2em;
     border-bottom: 1px solid #eee;
 }
-.markdown-body h1 .anchor {
-    line-height: 1;
-}
+
 .markdown-body h2 {
     padding-bottom: 0.3em;
-    font-size: 1.75em;
-    line-height: 1.225;
+    font-size: 1.5em;
     border-bottom: 1px solid #eee;
 }
-.markdown-body h2 .anchor {
-    line-height: 1;
-}
+
 .markdown-body h3 {
-    font-size: 1.5em;
-    line-height: 1.43;
-}
-.markdown-body h3 .anchor {
-    line-height: 1.2;
-}
-.markdown-body h4 {
     font-size: 1.25em;
 }
-.markdown-body h4 .anchor {
-    line-height: 1.2;
-}
-.markdown-body h5 {
+
+.markdown-body h4 {
     font-size: 1em;
 }
-.markdown-body h5 .anchor {
-    line-height: 1.1;
+
+.markdown-body h5 {
+    font-size: 0.875em;
 }
+
 .markdown-body h6 {
-    font-size: 1em;
-    color: #777;
-}
-.markdown-body h6 .anchor {
-    line-height: 1.1;
+    font-size: 0.85em;
+    color: #777
 }
-.markdown-body p, .markdown-body blockquote, .markdown-body ul, .markdown-body ol, .markdown-body dl, .markdown-body table, .markdown-body pre {
-    margin-top: 0;
-    margin-bottom: 16px;
-}
-.markdown-body hr {
-    height: 4px;
-    padding: 0;
-    margin: 16px 0;
-    background-color: #e7e7e7;
-    border: 0 none;
-}
-.markdown-body ul, .markdown-body ol {
-    padding-left: 2em;
+
+.markdown-body ul,
+.markdown-body ol {
+    padding-left: 2em
 }
-.markdown-body ul.no-list, .markdown-body ol.no-list {
+
+.markdown-body ul.no-list,
+.markdown-body ol.no-list {
     padding: 0;
     list-style-type: none;
 }
-.markdown-body ul ul, .markdown-body ul ol, .markdown-body ol ol, .markdown-body ol ul {
+
+.markdown-body ul ul,
+.markdown-body ul ol,
+.markdown-body ol ol,
+.markdown-body ol ul {
     margin-top: 0;
-    margin-bottom: 0;
+    margin-bottom: 0
 }
+
 .markdown-body li>p {
-    margin-top: 16px;
+    margin-top: 16px
+}
+
+.markdown-body li+li {
+    margin-top: 0.25em;
 }
+
 .markdown-body dl {
     padding: 0;
 }
+
 .markdown-body dl dt {
     padding: 0;
     margin-top: 16px;
@@ -120,21 +218,12 @@
     font-style: italic;
     font-weight: bold;
 }
+
 .markdown-body dl dd {
     padding: 0 16px;
     margin-bottom: 16px;
 }
-.markdown-body blockquote {
-    padding: 0 15px;
-    color: #777;
-    border-left: 4px solid #ddd;
-}
-.markdown-body blockquote>:first-child {
-    margin-top: 0;
-}
-.markdown-body blockquote>:last-child {
-    margin-bottom: 0;
-}
+
 .markdown-body table {
     display: block;
     width: 100%;
@@ -142,35 +231,51 @@
     word-break: normal;
     word-break: keep-all;
 }
+
 .markdown-body table th {
-    font-weight: bold;
+    font-weight: bold
 }
-.markdown-body table th, .markdown-body table td {
+
+.markdown-body table th,
+.markdown-body table td {
     padding: 6px 13px;
     border: 1px solid #ddd;
 }
+
 .markdown-body table tr {
     background-color: #fff;
     border-top: 1px solid #ccc;
 }
+
 .markdown-body table tr:nth-child(2n) {
     background-color: #f8f8f8;
 }
+
 .markdown-body img {
     max-width: 100%;
-    -moz-box-sizing: border-box;
-    box-sizing: border-box;
+    box-sizing: content-box;
+    background-color: #fff;
+}
+
+.markdown-body img[align=right] {
+    padding-left: 20px;
 }
+
+.markdown-body img[align=left] {
+    padding-right: 20px;
+}
+
 .markdown-body .emoji {
-    width: 20px;
-    height: 20px;
     max-width: none;
-    margin-bottom: 0;
+    vertical-align: text-top;
+    background-color: transparent;
 }
+
 .markdown-body span.frame {
     display: block;
     overflow: hidden;
 }
+
 .markdown-body span.frame>span {
     display: block;
     float: left;
@@ -180,68 +285,82 @@
     overflow: hidden;
     border: 1px solid #ddd;
 }
+
 .markdown-body span.frame span img {
     display: block;
     float: left;
 }
+
 .markdown-body span.frame span span {
     display: block;
     padding: 5px 0 0;
     clear: both;
     color: #333;
 }
+
 .markdown-body span.align-center {
     display: block;
     overflow: hidden;
     clear: both;
 }
+
 .markdown-body span.align-center>span {
     display: block;
     margin: 13px auto 0;
     overflow: hidden;
     text-align: center;
 }
+
 .markdown-body span.align-center span img {
     margin: 0 auto;
     text-align: center;
 }
+
 .markdown-body span.align-right {
     display: block;
     overflow: hidden;
     clear: both;
 }
+
 .markdown-body span.align-right>span {
     display: block;
     margin: 13px 0 0;
     overflow: hidden;
     text-align: right;
 }
+
 .markdown-body span.align-right span img {
     margin: 0;
     text-align: right;
 }
+
 .markdown-body span.float-left {
     display: block;
     float: left;
     margin-right: 13px;
     overflow: hidden;
 }
+
 .markdown-body span.float-left span {
     margin: 13px 0 0;
 }
+
 .markdown-body span.float-right {
     display: block;
     float: right;
     margin-left: 13px;
     overflow: hidden;
 }
+
 .markdown-body span.float-right>span {
     display: block;
     margin: 13px auto 0;
     overflow: hidden;
     text-align: right;
 }
-.markdown-body code, .markdown-body tt {
+
+.markdown-body code,
+.markdown-body tt {
     padding: 0;
     padding-top: 0.2em;
     padding-bottom: 0.2em;
@@ -250,15 +369,28 @@
     background-color: rgba(0, 0, 0, 0.04);
     border-radius: 3px;
 }
-.markdown-body code:before, .markdown-body code:after, .markdown-body tt:before, .markdown-body tt:after {
+
+.markdown-body code::before,
+.markdown-body code::after,
+.markdown-body tt::before,
+.markdown-body tt::after {
     letter-spacing: -0.2em;
-    content: "\00a0"}
-.markdown-body code br, .markdown-body tt br {
+    content: "\00a0";
+}
+
+.markdown-body code br,
+.markdown-body tt br {
     display: none;
 }
+
 .markdown-body del code {
     text-decoration: inherit;
 }
+
+.markdown-body pre {
+    word-wrap: normal;
+}
+
 .markdown-body pre>code {
     padding: 0;
     margin: 0;
@@ -268,10 +400,18 @@
     background: transparent;
     border: 0;
 }
+
 .markdown-body .highlight {
     margin-bottom: 16px;
 }
-.markdown-body .highlight pre, .markdown-body pre {
+
+.markdown-body .highlight pre {
+    margin-bottom: 0;
+    word-break: normal;
+}
+
+.markdown-body .highlight pre,
+.markdown-body pre {
     padding: 16px;
     overflow: auto;
     font-size: 85%;
@@ -279,29 +419,29 @@
     background-color: #f7f7f7;
     border-radius: 3px;
 }
-.markdown-body .highlight pre {
-    margin-bottom: 0;
-    word-break: normal;
-}
-.markdown-body pre {
-    word-wrap: normal;
-}
-.markdown-body pre code, .markdown-body pre tt {
+
+.markdown-body pre code,
+.markdown-body pre tt {
     display: inline;
-    max-width: initial;
+    max-width: auto;
     padding: 0;
     margin: 0;
-    overflow: initial;
+    overflow: visible;
     line-height: inherit;
     word-wrap: normal;
     background-color: transparent;
     border: 0;
 }
-.markdown-body pre code:before, .markdown-body pre code:after, .markdown-body pre tt:before, .markdown-body pre tt:after {
+
+.markdown-body pre code::before,
+.markdown-body pre code::after,
+.markdown-body pre tt::before,
+.markdown-body pre tt::after {
     content: normal;
 }
 
-.markdown-body .csv-data td, .markdown-body .csv-data th {
+.markdown-body .csv-data td,
+.markdown-body .csv-data th {
     padding: 5px;
     overflow: hidden;
     font-size: 12px;
@@ -309,15 +449,18 @@
     text-align: left;
     white-space: nowrap;
 }
+
 .markdown-body .csv-data .blob-line-num {
     padding: 10px 8px 9px;
     text-align: right;
     background: #fff;
     border: 0;
 }
+
 .markdown-body .csv-data tr {
     border-top: 0;
 }
+
 .markdown-body .csv-data th {
     font-weight: bold;
     background: #f8f8f8;
@@ -335,7 +478,7 @@
     border: solid 1px #ccc;
     border-bottom-color: #bbb;
     border-radius: 3px;
-    box-shadow: inset 0 -1px 0 #bbb
+    box-shadow: inset 0 -1px 0 #bbb;
 }
 
 .news .alert .markdown-body blockquote {
@@ -343,22 +486,27 @@
     border: 0 none;
 }
 
-.activity-tab .news .markdown-body blockquote, .activity-tab .news .alert .commits {
+.activity-tab .news .markdown-body blockquote,
+.activity-tab .news .alert .commits {
     padding-left: 0;
 }
 
 .task-list-item {
     list-style-type: none;
 }
+
 .task-list-item label {
     font-weight: normal;
 }
+
 .task-list-item.enabled label {
     cursor: pointer;
 }
+
 .task-list-item+.task-list-item {
     margin-top: 3px;
 }
+
 .task-list-item-checkbox {
     float: left;
     margin: 0.31em 0 0.2em -1.3em !important;
diff --git a/public/css/html.min.css b/public/css/html.min.css
index bc3ae926..24181758 100644
--- a/public/css/html.min.css
+++ b/public/css/html.min.css
@@ -1 +1 @@
-.markdown-body h1,.markdown-body h2{padding-bottom:.3em;border-bottom:1px solid #eee}.vimeo iframe,.youtube iframe,.youtube img{top:0;left:0;height:100%;position:absolute}.markdown-body{font-size:16px;line-height:1.6;word-wrap:break-word}.markdown-body>:first-child{margin-top:0!important}.markdown-body>:last-child{margin-bottom:0!important}.markdown-body .absent{color:#c00}.markdown-body .anchor{display:inline-block;padding-right:2px;margin-left:-18.36px}.markdown-body .anchor:focus{outline:0}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6{margin-top:1em;margin-bottom:16px;font-weight:700;line-height:1.4}.markdown-body h1 .octicon-link,.markdown-body h2 .octicon-link,.markdown-body h3 .octicon-link,.markdown-body h4 .octicon-link,.markdown-body h5 .octicon-link,.markdown-body h6 .octicon-link{color:#000;vertical-align:middle;visibility:hidden}.markdown-body h1:hover .anchor,.markdown-body h2:hover .anchor,.markdown-body h3:hover .anchor,.markdown-body h4:hover .anchor,.markdown-body h5:hover .anchor,.markdown-body h6:hover .anchor{text-decoration:none}.markdown-body h1:hover .anchor .octicon-link,.markdown-body h2:hover .anchor .octicon-link,.markdown-body h3:hover .anchor .octicon-link,.markdown-body h4:hover .anchor .octicon-link,.markdown-body h5:hover .anchor .octicon-link,.markdown-body h6:hover .anchor .octicon-link{visibility:visible}.markdown-body h1 code,.markdown-body h1 tt,.markdown-body h2 code,.markdown-body h2 tt,.markdown-body h3 code,.markdown-body h3 tt,.markdown-body h4 code,.markdown-body h4 tt,.markdown-body h5 code,.markdown-body h5 tt,.markdown-body h6 code,.markdown-body h6 tt{font-size:inherit}.markdown-body h1{font-size:2.25em;line-height:1.2}.markdown-body h1 .anchor{line-height:1}.markdown-body h2{font-size:1.75em;line-height:1.225}.markdown-body h2 .anchor{line-height:1}.markdown-body h3{font-size:1.5em;line-height:1.43}.markdown-body h3 .anchor,.markdown-body h4 .anchor{line-height:1.2}.markdown-body h4{font-size:1.25em}.markdown-body h5 .anchor,.markdown-body h6 .anchor{line-height:1.1}.markdown-body h5{font-size:1em}.markdown-body h6{font-size:1em;color:#777}.markdown-body blockquote,.markdown-body dl,.markdown-body ol,.markdown-body p,.markdown-body pre,.markdown-body table,.markdown-body ul{margin-top:0;margin-bottom:16px}.markdown-body hr{height:4px;padding:0;margin:16px 0;background-color:#e7e7e7;border:0}.markdown-body ol,.markdown-body ul{padding-left:2em}.markdown-body ol.no-list,.markdown-body ul.no-list{padding:0;list-style-type:none}.markdown-body ol ol,.markdown-body ol ul,.markdown-body ul ol,.markdown-body ul ul{margin-top:0;margin-bottom:0}.markdown-body li>p{margin-top:16px}.markdown-body dl{padding:0}.markdown-body dl dt{padding:0;margin-top:16px;font-size:1em;font-style:italic;font-weight:700}.markdown-body dl dd{padding:0 16px;margin-bottom:16px}.markdown-body blockquote{padding:0 15px;color:#777;border-left:4px solid 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\ No newline at end of file
diff --git a/public/css/markdown.css b/public/css/markdown.css
index 76fd0c5d..8cb59666 100644
--- a/public/css/markdown.css
+++ b/public/css/markdown.css
@@ -1,7 +1,7 @@
 /* for markdown-body */
 
 .markdown-body {
-    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
     padding-top: 40px;
     padding-bottom: 40px;
     max-width: 758px;