Migrate font-family to tailwind (#30118)

Enable us to use tailwind's
[`font-family`](https://tailwindcss.com/docs/font-family) classes as
well as remove `gt-mono` in favor of `tw-font-mono`. I also merged the
"compensation" to one selector, previously this was two different values
0.9em and 0.95em. I did not declare a `serif` font because I don't think
there will ever be a use case for those. Command ran:

```sh
perl -p -i -e 's#gt-mono#tw-font-mono#g' web_src/js/**/* templates/**/*

19 files changed, 37 insertions, 31 deletions

diff --git a/docs/content/contributing/guidelines-frontend.en-us.md b/docs/content/contributing/guidelines-frontend.en-us.md
index 3535e97903..efeaf38bb2 100644
--- a/docs/content/contributing/guidelines-frontend.en-us.md
+++ b/docs/content/contributing/guidelines-frontend.en-us.md
@@ -47,7 +47,7 @@ We recommend [Google HTML/CSS Style Guide](https://google.github.io/styleguide/h
 9. Avoid unnecessary `!important` in CSS, add comments to explain why it's necessary if it can't be avoided.
 10. Avoid mixing different events in one event listener, prefer to use individual event listeners for every event.
 11. Custom event names are recommended to use `ce-` prefix.
-12. Prefer using Tailwind CSS which is available via `tw-` prefix, e.g. `tw-relative`. Gitea's helper CSS classes use `gt-` prefix (`gt-mono`), while Gitea's own private framework-level CSS classes use `g-` prefix (`g-modal-confirm`).
+12. Prefer using Tailwind CSS which is available via `tw-` prefix, e.g. `tw-relative`. Gitea's helper CSS classes use `gt-` prefix (`gt-word-break`), while Gitea's own private framework-level CSS classes use `g-` prefix (`g-modal-confirm`).
 13. Avoid inline scripts & styles as much as possible, it's recommended to put JS code into JS files and use CSS classes. If inline scripts & styles are unavoidable, explain the reason why it can't be avoided.
 
 ### Accessibility / ARIA
diff --git a/docs/content/contributing/guidelines-frontend.zh-cn.md b/docs/content/contributing/guidelines-frontend.zh-cn.md
index c7998c6dc5..394097b259 100644
--- a/docs/content/contributing/guidelines-frontend.zh-cn.md
+++ b/docs/content/contributing/guidelines-frontend.zh-cn.md
@@ -47,7 +47,7 @@ HTML 页面由[Go HTML Template](https://pkg.go.dev/html/template)渲染。
 9. 避免在 CSS 中使用不必要的`!important`，如果无法避免，添加注释解释为什么需要它。
 10. 避免在一个事件监听器中混合不同的事件，优先为每个事件使用独立的事件监听器。
 11. 推荐使用自定义事件名称前缀`ce-`。
-12. 建议使用 Tailwind CSS，它可以通过 `tw-` 前缀获得，例如 `tw-relative`. Gitea 自身的助手类 CSS 使用 `gt-` 前缀（`gt-mono`），Gitea 自身的私有框架级 CSS 类使用 `g-` 前缀（`g-modal-confirm`）。
+12. 建议使用 Tailwind CSS，它可以通过 `tw-` 前缀获得，例如 `tw-relative`. Gitea 自身的助手类 CSS 使用 `gt-` 前缀（`gt-word-break`），Gitea 自身的私有框架级 CSS 类使用 `g-` 前缀（`g-modal-confirm`）。
 13. 尽量避免内联脚本和样式，建议将JS代码放入JS文件中并使用CSS类。如果内联脚本和样式不可避免，请解释无法避免的原因。
 
 ### 可访问性 / ARIA
diff --git a/tailwind.config.js b/tailwind.config.js
index 5bce37e023..d49e9d7a1c 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -68,6 +68,10 @@ export default {
       '3xl': '24px',
       'full': 'var(--border-radius-circle)', // 50%
     },
+    fontFamily: {
+      sans: 'var(--fonts-regular)',
+      mono: 'var(--fonts-monospace)',
+    },
     fontWeight: {
       light: 'var(--font-weight-light)',
       normal: 'var(--font-weight-normal)',
diff --git a/templates/repo/commits_list_small.tmpl b/templates/repo/commits_list_small.tmpl
index 0af29291d8..d96b314d01 100644
--- a/templates/repo/commits_list_small.tmpl
+++ b/templates/repo/commits_list_small.tmpl
@@ -38,7 +38,7 @@
 			</a>
 		</span>
 
-		<span class="gt-mono commit-summary {{if gt .ParentCount 1}} grey text{{end}}" title="{{.Summary}}">{{RenderCommitMessageLinkSubject $.root.Context .Message $commitLink ($.comment.Issue.PullRequest.BaseRepo.ComposeMetas ctx)}}</span>
+		<span class="tw-font-mono commit-summary {{if gt .ParentCount 1}} grey text{{end}}" title="{{.Summary}}">{{RenderCommitMessageLinkSubject $.root.Context .Message $commitLink ($.comment.Issue.PullRequest.BaseRepo.ComposeMetas ctx)}}</span>
 		{{if IsMultilineCommitMessage .Message}}
 			<button class="ui button js-toggle-commit-body ellipsis-button" aria-expanded="false">...</button>
 		{{end}}
diff --git a/templates/repo/diff/blob_excerpt.tmpl b/templates/repo/diff/blob_excerpt.tmpl
index 201bff805a..8312b5d913 100644
--- a/templates/repo/diff/blob_excerpt.tmpl
+++ b/templates/repo/diff/blob_excerpt.tmpl
@@ -27,7 +27,7 @@
 			{{$inlineDiff := $.section.GetComputedInlineDiffFor $line ctx.Locale}}
 			<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{$.FileNameHash}}L{{$line.LeftIdx}}{{end}}"></span></td>
 			<td class="blob-excerpt lines-escape lines-escape-old">{{if and $line.LeftIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
-			<td class="blob-excerpt lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="gt-mono" data-type-marker=""></span>{{end}}</td>
+			<td class="blob-excerpt lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
 			<td class="blob-excerpt lines-code lines-code-old">{{/*
 				*/}}{{if $line.LeftIdx}}{{template "repo/diff/section_code" dict "diff" $inlineDiff}}{{else}}{{/*
 					*/}}<code class="code-inner"></code>{{/*
@@ -35,7 +35,7 @@
 			*/}}</td>
 			<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$.FileNameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
 			<td class="blob-excerpt lines-escape lines-escape-new">{{if and $line.RightIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
-			<td class="blob-excerpt lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="gt-mono" data-type-marker=""></span>{{end}}</td>
+			<td class="blob-excerpt lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
 			<td class="blob-excerpt lines-code lines-code-new">{{/*
 				*/}}{{if $line.RightIdx}}{{template "repo/diff/section_code" dict "diff" $inlineDiff}}{{else}}{{/*
 					*/}}<code class="code-inner"></code>{{/*
@@ -73,7 +73,7 @@
 		{{end}}
 		{{$inlineDiff := $.section.GetComputedInlineDiffFor $line ctx.Locale}}
 		<td class="blob-excerpt lines-escape">{{if $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
-		<td class="blob-excerpt lines-type-marker"><span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
+		<td class="blob-excerpt lines-type-marker"><span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
 		<td class="blob-excerpt lines-code{{if (not $line.RightIdx)}} lines-code-old{{end}}"><code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code></td>
 	</tr>
 	{{end}}
diff --git a/templates/repo/diff/box.tmpl b/templates/repo/diff/box.tmpl
index 555ffafc62..5327b7f02c 100644
--- a/templates/repo/diff/box.tmpl
+++ b/templates/repo/diff/box.tmpl
@@ -119,7 +119,7 @@
 										{{svg "octicon-chevron-down" 18}}
 									{{end}}
 								</button>
-								<div class="tw-font-semibold tw-flex tw-items-center gt-mono">
+								<div class="tw-font-semibold tw-flex tw-items-center tw-font-mono">
 									{{if $file.IsBin}}
 										<span class="tw-ml-0.5 tw-mr-2">
 											{{ctx.Locale.Tr "repo.diff.bin"}}
@@ -128,7 +128,7 @@
 										{{template "repo/diff/stats" dict "file" . "root" $}}
 									{{end}}
 								</div>
-								<span class="file gt-mono"><a class="muted file-link" title="{{if $file.IsRenamed}}{{$file.OldName}} → {{end}}{{$file.Name}}" href="#diff-{{$file.NameHash}}">{{if $file.IsRenamed}}{{$file.OldName}} → {{end}}{{$file.Name}}</a>{{if .IsLFSFile}} ({{ctx.Locale.Tr "repo.stored_lfs"}}){{end}}</span>
+								<span class="file tw-font-mono"><a class="muted file-link" title="{{if $file.IsRenamed}}{{$file.OldName}} → {{end}}{{$file.Name}}" href="#diff-{{$file.NameHash}}">{{if $file.IsRenamed}}{{$file.OldName}} → {{end}}{{$file.Name}}</a>{{if .IsLFSFile}} ({{ctx.Locale.Tr "repo.stored_lfs"}}){{end}}</span>
 								<button class="btn interact-fg tw-p-2" data-clipboard-text="{{$file.Name}}">{{svg "octicon-copy" 14}}</button>
 								{{if $file.IsGenerated}}
 									<span class="ui label">{{ctx.Locale.Tr "repo.diff.generated"}}</span>
@@ -139,9 +139,9 @@
 								{{if and $file.Mode $file.OldMode}}
 									{{$old := ctx.Locale.Tr ($file.ModeTranslationKey $file.OldMode)}}
 									{{$new := ctx.Locale.Tr ($file.ModeTranslationKey $file.Mode)}}
-									<span class="tw-ml-4 gt-mono">{{ctx.Locale.Tr "git.filemode.changed_filemode" $old $new}}</span>
+									<span class="tw-ml-4 tw-font-mono">{{ctx.Locale.Tr "git.filemode.changed_filemode" $old $new}}</span>
 								{{else if $file.Mode}}
-									<span class="tw-ml-4 gt-mono">{{ctx.Locale.Tr ($file.ModeTranslationKey $file.Mode)}}</span>
+									<span class="tw-ml-4 tw-font-mono">{{ctx.Locale.Tr ($file.ModeTranslationKey $file.Mode)}}</span>
 								{{end}}
 							</div>
 							<div class="diff-file-header-actions tw-flex tw-items-center tw-gap-1 tw-flex-wrap">
diff --git a/templates/repo/diff/section_split.tmpl b/templates/repo/diff/section_split.tmpl
index 5af5da09b4..67e2b195de 100644
--- a/templates/repo/diff/section_split.tmpl
+++ b/templates/repo/diff/section_split.tmpl
@@ -44,7 +44,7 @@
 					{{- $rightDiff := ""}}{{if $match.RightIdx}}{{$rightDiff = $section.GetComputedInlineDiffFor $match ctx.Locale}}{{end}}
 					<td class="lines-num lines-num-old del-code" data-line-num="{{$line.LeftIdx}}"><span rel="diff-{{$file.NameHash}}L{{$line.LeftIdx}}"></span></td>
 					<td class="lines-escape del-code lines-escape-old">{{if $line.LeftIdx}}{{if $leftDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $leftDiff}}"></button>{{end}}{{end}}</td>
-					<td class="lines-type-marker lines-type-marker-old del-code"><span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
+					<td class="lines-type-marker lines-type-marker-old del-code"><span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
 					<td class="lines-code lines-code-old del-code">{{/*
 						*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles}}{{/*
 							*/}}<button type="button" aria-label="{{ctx.Locale.Tr "repo.diff.comment.add_line_comment"}}" class="ui primary button add-code-comment add-code-comment-left{{if (not $line.CanComment)}} tw-invisible{{end}}" data-side="left" data-idx="{{$line.LeftIdx}}">{{/*
@@ -59,7 +59,7 @@
 					*/}}</td>
 					<td class="lines-num lines-num-new add-code" data-line-num="{{if $match.RightIdx}}{{$match.RightIdx}}{{end}}"><span rel="{{if $match.RightIdx}}diff-{{$file.NameHash}}R{{$match.RightIdx}}{{end}}"></span></td>
 					<td class="lines-escape add-code lines-escape-new">{{if $match.RightIdx}}{{if $rightDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $rightDiff}}"></button>{{end}}{{end}}</td>
-					<td class="lines-type-marker lines-type-marker-new add-code">{{if $match.RightIdx}}<span class="gt-mono" data-type-marker="{{$match.GetLineTypeMarker}}"></span>{{end}}</td>
+					<td class="lines-type-marker lines-type-marker-new add-code">{{if $match.RightIdx}}<span class="tw-font-mono" data-type-marker="{{$match.GetLineTypeMarker}}"></span>{{end}}</td>
 					<td class="lines-code lines-code-new add-code">{{/*
 						*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles}}{{/*
 							*/}}<button type="button" aria-label="{{ctx.Locale.Tr "repo.diff.comment.add_line_comment"}}" class="ui primary button add-code-comment add-code-comment-right{{if (not $match.CanComment)}} tw-invisible{{end}}" data-side="right" data-idx="{{$match.RightIdx}}">{{/*
@@ -76,7 +76,7 @@
 					{{$inlineDiff := $section.GetComputedInlineDiffFor $line ctx.Locale}}
 					<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{$file.NameHash}}L{{$line.LeftIdx}}{{end}}"></span></td>
 					<td class="lines-escape lines-escape-old">{{if $line.LeftIdx}}{{if $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}{{end}}</td>
-					<td class="lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span>{{end}}</td>
+					<td class="lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span>{{end}}</td>
 					<td class="lines-code lines-code-old">{{/*
 						*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles (not (eq .GetType 2))}}{{/*
 							*/}}<button type="button" aria-label="{{ctx.Locale.Tr "repo.diff.comment.add_line_comment"}}" class="ui primary button add-code-comment add-code-comment-left{{if (not $line.CanComment)}} tw-invisible{{end}}" data-side="left" data-idx="{{$line.LeftIdx}}">{{/*
@@ -91,7 +91,7 @@
 					*/}}</td>
 					<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$file.NameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
 					<td class="lines-escape lines-escape-new">{{if $line.RightIdx}}{{if $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}{{end}}</td>
-					<td class="lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span>{{end}}</td>
+					<td class="lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span>{{end}}</td>
 					<td class="lines-code lines-code-new">{{/*
 						*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles (not (eq .GetType 3))}}{{/*
 							*/}}<button type="button" aria-label="{{ctx.Locale.Tr "repo.diff.comment.add_line_comment"}}" class="ui primary button add-code-comment add-code-comment-right{{if (not $line.CanComment)}} tw-invisible{{end}}" data-side="right" data-idx="{{$line.RightIdx}}">{{/*
diff --git a/templates/repo/diff/section_unified.tmpl b/templates/repo/diff/section_unified.tmpl
index eb51c46d88..4111159709 100644
--- a/templates/repo/diff/section_unified.tmpl
+++ b/templates/repo/diff/section_unified.tmpl
@@ -44,7 +44,7 @@
 					<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>
 				{{- end -}}
 			</td>
-			<td class="lines-type-marker"><span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
+			<td class="lines-type-marker"><span class="tw-font-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
 			{{if eq .GetType 4}}
 				<td class="chroma lines-code blob-hunk">{{/*
 					*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff}}{{/*
diff --git a/templates/repo/file_info.tmpl b/templates/repo/file_info.tmpl
index 0fb56a9a19..86c613e3a1 100644
--- a/templates/repo/file_info.tmpl
+++ b/templates/repo/file_info.tmpl
@@ -1,4 +1,4 @@
-<div class="file-info text grey normal gt-mono">
+<div class="file-info text grey normal tw-font-mono">
 	{{if .FileIsSymlink}}
 		<div class="file-info-entry">
 			{{ctx.Locale.Tr "repo.symbolic_link"}}
diff --git a/templates/repo/release/list.tmpl b/templates/repo/release/list.tmpl
index 9da6c48c8e..3139022bb4 100644
--- a/templates/repo/release/list.tmpl
+++ b/templates/repo/release/list.tmpl
@@ -11,7 +11,7 @@
 					<div class="ui four wide column meta">
 						<a class="muted" href="{{if not (and $release.Sha1 ($.Permission.CanRead $.UnitTypeCode))}}#{{else}}{{$.RepoLink}}/src/tag/{{$release.TagName | PathEscapeSegments}}{{end}}" rel="nofollow">{{svg "octicon-tag" 16 "tw-mr-1"}}{{$release.TagName}}</a>
 						{{if and $release.Sha1 ($.Permission.CanRead $.UnitTypeCode)}}
-							<a class="muted gt-mono" href="{{$.RepoLink}}/src/commit/{{$release.Sha1}}" rel="nofollow">{{svg "octicon-git-commit" 16 "tw-mr-1"}}{{ShortSha $release.Sha1}}</a>
+							<a class="muted tw-font-mono" href="{{$.RepoLink}}/src/commit/{{$release.Sha1}}" rel="nofollow">{{svg "octicon-git-commit" 16 "tw-mr-1"}}{{ShortSha $release.Sha1}}</a>
 							{{template "repo/branch_dropdown" dict "root" $ "release" $release}}
 						{{end}}
 					</div>
diff --git a/templates/repo/settings/lfs.tmpl b/templates/repo/settings/lfs.tmpl
index dca4d1f1ce..e0864ff221 100644
--- a/templates/repo/settings/lfs.tmpl
+++ b/templates/repo/settings/lfs.tmpl
@@ -12,7 +12,7 @@
 				{{range .LFSFiles}}
 					<tr>
 						<td>
-							<a href="{{$.Link}}/show/{{.Oid}}" title="{{.Oid}}" class="ui brown button gt-mono">
+							<a href="{{$.Link}}/show/{{.Oid}}" title="{{.Oid}}" class="ui brown button tw-font-mono">
 								{{ShortSha .Oid}}
 							</a>
 						</td>
diff --git a/templates/repo/settings/lfs_pointers.tmpl b/templates/repo/settings/lfs_pointers.tmpl
index fa2e376ff3..a0bb8c46f0 100644
--- a/templates/repo/settings/lfs_pointers.tmpl
+++ b/templates/repo/settings/lfs_pointers.tmpl
@@ -32,12 +32,12 @@
 					{{range .Pointers}}
 						<tr>
 							<td>
-								<a href="{{$.RepoLink}}/raw/blob/{{.SHA}}" rel="nofollow" target="_blank" title="{{.SHA}}" class="ui button gt-mono">
+								<a href="{{$.RepoLink}}/raw/blob/{{.SHA}}" rel="nofollow" target="_blank" title="{{.SHA}}" class="ui button tw-font-mono">
 									{{ShortSha .SHA}}
 								</a>
 							</td>
 							<td>
-								<a {{if and .Exists .InRepo}}href="{{$.LFSFilesLink}}/show/{{.Oid}}" rel="nofollow" target="_blank"{{end}} title="{{.Oid}}" class="ui brown button gt-mono">
+								<a {{if and .Exists .InRepo}}href="{{$.LFSFilesLink}}/show/{{.Oid}}" rel="nofollow" target="_blank"{{end}} title="{{.Oid}}" class="ui brown button tw-font-mono">
 									{{ShortSha .Oid}}
 								</a>
 							</td>
diff --git a/templates/repo/tag/list.tmpl b/templates/repo/tag/list.tmpl
index a107bd1ad3..5378a8a322 100644
--- a/templates/repo/tag/list.tmpl
+++ b/templates/repo/tag/list.tmpl
@@ -29,7 +29,7 @@
 											<span class="tw-mr-2">{{svg "octicon-clock" 16 "tw-mr-1"}}{{TimeSinceUnix .CreatedUnix ctx.Locale}}</span>
 										{{end}}
 
-										<a class="tw-mr-2 gt-mono muted" href="{{$.RepoLink}}/src/commit/{{.Sha1}}" rel="nofollow">{{svg "octicon-git-commit" 16 "tw-mr-1"}}{{ShortSha .Sha1}}</a>
+										<a class="tw-mr-2 tw-font-mono muted" href="{{$.RepoLink}}/src/commit/{{.Sha1}}" rel="nofollow">{{svg "octicon-git-commit" 16 "tw-mr-1"}}{{ShortSha .Sha1}}</a>
 
 										{{if not $.DisableDownloadSourceArchives}}
 											<a class="archive-link tw-mr-2 muted" href="{{$.RepoLink}}/archive/{{.TagName | PathEscapeSegments}}.zip" rel="nofollow">{{svg "octicon-file-zip" 16 "tw-mr-1"}}ZIP</a>
diff --git a/templates/shared/combomarkdowneditor.tmpl b/templates/shared/combomarkdowneditor.tmpl
index c6e86133cd..96fcf04cef 100644
--- a/templates/shared/combomarkdowneditor.tmpl
+++ b/templates/shared/combomarkdowneditor.tmpl
@@ -49,7 +49,7 @@ Template Attributes:
 		</text-expander>
 		<script>
 			if (localStorage?.getItem('markdown-editor-monospace') === 'true') {
-				document.querySelector('.markdown-text-editor').classList.add('gt-mono');
+				document.querySelector('.markdown-text-editor').classList.add('tw-font-mono');
 			}
 		</script>
 	</div>
diff --git a/web_src/css/base.css b/web_src/css/base.css
index 07f15cac2b..18db136bc9 100644
--- a/web_src/css/base.css
+++ b/web_src/css/base.css
@@ -62,10 +62,17 @@ pre,
 code,
 kbd,
 samp {
-  font-size: 0.9em; /* compensate for monospace fonts being usually slightly larger */
   font-family: var(--fonts-monospace);
 }
 
+pre,
+code,
+kbd,
+samp,
+.tw-font-mono {
+  font-size: 0.95em; /* compensate for monospace fonts being usually slightly larger */
+}
+
 b,
 strong,
 h1,
diff --git a/web_src/css/helpers.css b/web_src/css/helpers.css
index 66d0f03257..13962f19d7 100644
--- a/web_src/css/helpers.css
+++ b/web_src/css/helpers.css
@@ -3,11 +3,6 @@ Gitea's tailwind-style CSS helper classes have `gt-` prefix.
 Gitea's private styles use `g-` prefix.
 */
 
-.gt-mono {
-  font-family: var(--fonts-monospace) !important;
-  font-size: .95em !important; /* compensate for monospace fonts being usually slightly larger */
-}
-
 .gt-word-break {
   word-wrap: break-word !important;
   word-break: break-word; /* compat: Safari */
diff --git a/web_src/js/components/DiffCommitSelector.vue b/web_src/js/components/DiffCommitSelector.vue
index cbb1f20873..352d085731 100644
--- a/web_src/js/components/DiffCommitSelector.vue
+++ b/web_src/js/components/DiffCommitSelector.vue
@@ -252,7 +252,7 @@ export default {
               </span>
             </div>
           </div>
-          <div class="gt-mono">
+          <div class="tw-font-mono">
             {{ commit.short_sha }}
           </div>
         </div>
diff --git a/web_src/js/components/DiffFileList.vue b/web_src/js/components/DiffFileList.vue
index bc6f1bee7d..916780d913 100644
--- a/web_src/js/components/DiffFileList.vue
+++ b/web_src/js/components/DiffFileList.vue
@@ -47,7 +47,7 @@ export default {
       </div>
       <!-- todo finish all file status, now modify, add, delete and rename -->
       <span :class="['status', diffTypeToString(file.Type)]" :data-tooltip-content="diffTypeToString(file.Type)">&nbsp;</span>
-      <a class="file gt-mono" :href="'#diff-' + file.NameHash">{{ file.Name }}</a>
+      <a class="file tw-font-mono" :href="'#diff-' + file.NameHash">{{ file.Name }}</a>
     </li>
     <li v-if="store.isIncomplete" class="tw-pt-1">
       <span class="file tw-flex tw-items-center tw-justify-between">{{ store.tooManyFilesMessage }}
diff --git a/web_src/js/features/comp/ComboMarkdownEditor.js b/web_src/js/features/comp/ComboMarkdownEditor.js
index 1e728ca201..d3fab375a9 100644
--- a/web_src/js/features/comp/ComboMarkdownEditor.js
+++ b/web_src/js/features/comp/ComboMarkdownEditor.js
@@ -105,7 +105,7 @@ class ComboMarkdownEditor {
       e.preventDefault();
       const enabled = localStorage?.getItem('markdown-editor-monospace') !== 'true';
       localStorage.setItem('markdown-editor-monospace', String(enabled));
-      this.textarea.classList.toggle('gt-mono', enabled);
+      this.textarea.classList.toggle('tw-font-mono', enabled);
       const text = monospaceButton.getAttribute(enabled ? 'data-disable-text' : 'data-enable-text');
       monospaceButton.setAttribute('data-tooltip-content', text);
       monospaceButton.setAttribute('aria-checked', String(enabled));