diff --git a/tailwind.config.js b/tailwind.config.js
index d783268bd7a10..604dec228fce6 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -55,5 +55,17 @@ export default {
       current: 'currentcolor',
       transparent: 'transparent',
     },
+    borderRadius: {
+      'none': '0',
+      'sm': '2px',
+      'DEFAULT': 'var(--border-radius)', // 4px
+      'md': 'var(--border-radius-medium)', // 6px
+      'lg': '8px',
+      'xl': '12px',
+      '2xl': '16px',
+      '3xl': '24px',
+      'circle': 'var(--border-radius-circle)', // 50%
+      'full': '9999px',
+    },
   },
 };
diff --git a/templates/org/header.tmpl b/templates/org/header.tmpl
index 943557b1ca968..1a55101c2e92a 100644
--- a/templates/org/header.tmpl
+++ b/templates/org/header.tmpl
@@ -7,7 +7,7 @@
 				{{if .Org.Visibility.IsLimited}}<span class="ui large basic horizontal label">{{ctx.Locale.Tr "org.settings.visibility.limited_shortname"}}</span>{{end}}
 				{{if .Org.Visibility.IsPrivate}}<span class="ui large basic horizontal label">{{ctx.Locale.Tr "org.settings.visibility.private_shortname"}}</span>{{end}}
 			</span>
-			<span class="gt-df gt-ac gt-gap-2 gt-ml-auto gt-font-16 tw-whitespace-nowrap">
+			<span class="gt-df gt-ac gt-gap-2 tw-ml-auto gt-font-16 tw-whitespace-nowrap">
 				{{if .EnableFeed}}
 					<a class="ui basic label button gt-mr-0" href="{{.Org.HomeLink}}.rss" data-tooltip-content="{{ctx.Locale.Tr "rss_feed"}}">
 						{{svg "octicon-rss" 24}}
diff --git a/templates/repo/issue/filter_list.tmpl b/templates/repo/issue/filter_list.tmpl
index d0086fdf8c2b6..bb13f63b9889b 100644
--- a/templates/repo/issue/filter_list.tmpl
+++ b/templates/repo/issue/filter_list.tmpl
@@ -43,7 +43,7 @@
 					{{end}}
 				{{end}}
 				{{RenderLabel $.Context ctx.Locale .}}
-				<p class="gt-ml-auto">{{template "repo/issue/labels/label_archived" .}}</p>
+				<p class="tw-ml-auto">{{template "repo/issue/labels/label_archived" .}}</p>
 			</a>
 		{{end}}
 	</div>
@@ -108,7 +108,7 @@
 			</div>
 			{{range .OpenProjects}}
 				<a class="{{if $.ProjectID}}{{if eq $.ProjectID .ID}}active selected{{end}}{{end}} item gt-df" href="{{$.Link}}?type={{$.ViewType}}&sort={{$.SortType}}&state={{$.State}}&labels={{$.SelectLabels}}&milestone={{$.MilestoneID}}&project={{.ID}}&assignee={{$.AssigneeID}}&poster={{$.PosterID}}{{if $.ShowArchivedLabels}}&archived=true{{end}}">
-					{{svg .IconName 18 "gt-mr-3 gt-shrink-0"}}<span class="gt-ellipsis">{{.Title}}</span>
+					{{svg .IconName 18 "gt-mr-3 tw-shrink-0"}}<span class="gt-ellipsis">{{.Title}}</span>
 				</a>
 			{{end}}
 		{{end}}
diff --git a/templates/repo/issue/labels/label_list.tmpl b/templates/repo/issue/labels/label_list.tmpl
index 428a4919aa1fe..ca8d40f1e0c1f 100644
--- a/templates/repo/issue/labels/label_list.tmpl
+++ b/templates/repo/issue/labels/label_list.tmpl
@@ -44,7 +44,7 @@
 			</div>
 			<div class="label-operation gt-df">
 				{{template "repo/issue/labels/label_archived" .}}
-				<div class="gt-df gt-ml-auto">
+				<div class="gt-df tw-ml-auto">
 					{{if and (not $.PageIsOrgSettingsLabels) (not $.Repository.IsArchived) (or $.CanWriteIssues $.CanWritePulls)}}
 						<a class="edit-label-button" href="#" data-id="{{.ID}}" data-title="{{.Name}}" {{if .Exclusive}}data-exclusive{{end}} {{if gt .ArchivedUnix 0}}data-is-archived{{end}} data-num-issues="{{.NumIssues}}" data-description="{{.Description}}" data-color={{.Color}}>{{svg "octicon-pencil"}} {{ctx.Locale.Tr "repo.issues.label_edit"}}</a>
 						<a class="delete-button" href="#" data-url="{{$.Link}}/delete" data-id="{{.ID}}">{{svg "octicon-trash"}} {{ctx.Locale.Tr "repo.issues.label_delete"}}</a>
diff --git a/templates/repo/pulls/tab_menu.tmpl b/templates/repo/pulls/tab_menu.tmpl
index 10bdfdb3de391..340b1bb397def 100644
--- a/templates/repo/pulls/tab_menu.tmpl
+++ b/templates/repo/pulls/tab_menu.tmpl
@@ -15,7 +15,7 @@
 			{{ctx.Locale.Tr "repo.pulls.tab_files"}}
 			<span class="ui small label">{{if .NumFiles}}{{.NumFiles}}{{else}}-{{end}}</span>
 		</a>
-		<span class="item gt-ml-auto gt-pr-0 gt-font-bold gt-df gt-ac gt-gap-3">
+		<span class="item tw-ml-auto gt-pr-0 gt-font-bold gt-df gt-ac gt-gap-3">
 			<span><span class="text green">{{if .Diff.TotalAddition}}+{{.Diff.TotalAddition}}{{end}}</span> <span class="text red">{{if .Diff.TotalDeletion}}-{{.Diff.TotalDeletion}}{{end}}</span></span>
 			<span class="diff-stats-bar">
 				<div class="diff-stats-add-bar" style="width: {{Eval 100 "*" .Diff.TotalAddition "/" "(" .Diff.TotalAddition "+" .Diff.TotalDeletion "+" 0.0 ")"}}%"></div>
diff --git a/templates/user/dashboard/navbar.tmpl b/templates/user/dashboard/navbar.tmpl
index af07897e2c8f0..3e9442d6fc92c 100644
--- a/templates/user/dashboard/navbar.tmpl
+++ b/templates/user/dashboard/navbar.tmpl
@@ -78,7 +78,7 @@
 
 	{{if .ContextUser.IsOrganization}}
 		<div class="right menu">
-			<a class="{{if .PageIsNews}}active {{end}}item gt-ml-auto" href="{{.ContextUser.DashboardLink}}{{if .Team}}/{{PathEscape .Team.Name}}{{end}}">
+			<a class="{{if .PageIsNews}}active {{end}}item tw-ml-auto" href="{{.ContextUser.DashboardLink}}{{if .Team}}/{{PathEscape .Team.Name}}{{end}}">
 				{{svg "octicon-rss"}}&nbsp;{{ctx.Locale.Tr "activities"}}
 			</a>
 			{{if not .UnitIssuesGlobalDisabled}}
diff --git a/web_src/css/helpers.css b/web_src/css/helpers.css
index 860722823a569..634f5d1c27c7f 100644
--- a/web_src/css/helpers.css
+++ b/web_src/css/helpers.css
@@ -52,12 +52,6 @@ Gitea's private styles use `g-` prefix.
 .gt-font-semibold { font-weight: var(--font-weight-semibold) !important; }
 .gt-font-bold { font-weight: var(--font-weight-bold) !important; }
 
-.gt-rounded { border-radius: var(--border-radius) !important; }
-.gt-rounded-top { border-radius: var(--border-radius) var(--border-radius) 0 0 !important; }
-.gt-rounded-bottom { border-radius: 0 0 var(--border-radius) var(--border-radius) !important; }
-.gt-rounded-left { border-radius: var(--border-radius) 0 0 var(--border-radius) !important; }
-.gt-rounded-right { border-radius: 0 var(--border-radius) var(--border-radius) 0 !important; }
-
 .gt-border-secondary { border: 1px solid var(--color-secondary) !important; }
 .gt-border-secondary-top { border-top: 1px solid var(--color-secondary) !important; }
 .gt-border-secondary-bottom { border-bottom: 1px solid var(--color-secondary) !important; }
@@ -121,14 +115,6 @@ Gitea's private styles use `g-` prefix.
 .gt-my-4 { margin-top: 1rem !important; margin-bottom: 1rem !important; }
 .gt-my-5 { margin-top: 2rem !important; margin-bottom: 2rem !important; }
 
-.gt-m-auto  { margin: auto !important; }
-.gt-mx-auto { margin-left: auto !important; margin-right: auto !important; }
-.gt-my-auto { margin-top: auto !important; margin-bottom: auto !important; }
-.gt-mt-auto { margin-top: auto !important; }
-.gt-mr-auto { margin-right: auto !important; }
-.gt-mb-auto { margin-bottom: auto !important; }
-.gt-ml-auto { margin-left: auto !important; }
-
 .gt-p-0 { padding: 0 !important; }
 .gt-p-1 { padding: .125rem !important; }
 .gt-p-2 { padding: .25rem !important; }
@@ -199,8 +185,6 @@ Gitea's private styles use `g-` prefix.
 .gt-gap-y-4 { row-gap: 1rem !important; }
 .gt-gap-y-5 { row-gap: 2rem !important; }
 
-.gt-shrink-0 { flex-shrink: 0 !important; }
-
 .gt-font-12 { font-size: 12px !important }
 .gt-font-13 { font-size: 13px !important }
 .gt-font-14 { font-size: 14px !important }
diff --git a/web_src/js/components/DashboardRepoList.vue b/web_src/js/components/DashboardRepoList.vue
index b9ee531d2ae49..a8b70f52628ef 100644
--- a/web_src/js/components/DashboardRepoList.vue
+++ b/web_src/js/components/DashboardRepoList.vue
@@ -409,7 +409,7 @@ export default sfc; // activate the IDE's Vue plugin
           </div>
         </overflow-menu>
       </div>
-      <div v-if="repos.length" class="ui attached table segment gt-rounded-bottom">
+      <div v-if="repos.length" class="ui attached table segment tw-rounded-b">
         <ul class="repo-owner-name-list">
           <li class="gt-df gt-ac gt-py-3" v-for="repo, index in repos" :class="{'active': index === activeIndex}" :key="repo.id">
             <a class="repo-list-link muted" :href="repo.link">
@@ -466,7 +466,7 @@ export default sfc; // activate the IDE's Vue plugin
           <svg-icon name="octicon-plus"/>
         </a>
       </h4>
-      <div v-if="organizations.length" class="ui attached table segment gt-rounded-bottom">
+      <div v-if="organizations.length" class="ui attached table segment tw-rounded-b">
         <ul class="repo-owner-name-list">
           <li class="gt-df gt-ac gt-py-3" v-for="org in organizations" :key="org.name">
             <a class="repo-list-link muted" :href="subUrl + '/' + encodeURIComponent(org.name)">
diff --git a/web_src/js/components/RepoCodeFrequency.vue b/web_src/js/components/RepoCodeFrequency.vue
index ad607a041a554..c55bbff9cd5b2 100644
--- a/web_src/js/components/RepoCodeFrequency.vue
+++ b/web_src/js/components/RepoCodeFrequency.vue
@@ -148,7 +148,7 @@ export default {
       {{ isLoading ? locale.loadingTitle : errorText ? locale.loadingTitleFailed: `Code frequency over the history of ${repoLink.slice(1)}` }}
     </div>
     <div class="gt-df ui segment main-graph">
-      <div v-if="isLoading || errorText !== ''" class="gt-tc gt-m-auto">
+      <div v-if="isLoading || errorText !== ''" class="gt-tc tw-m-auto">
         <div v-if="isLoading">
           <SvgIcon name="octicon-sync" class="gt-mr-3 job-status-rotate"/>
           {{ locale.loadingInfo }}
diff --git a/web_src/js/components/RepoContributors.vue b/web_src/js/components/RepoContributors.vue
index 22c247ae326ee..6093c762cbd73 100644
--- a/web_src/js/components/RepoContributors.vue
+++ b/web_src/js/components/RepoContributors.vue
@@ -353,7 +353,7 @@ export default {
       </div>
     </div>
     <div class="gt-df ui segment main-graph">
-      <div v-if="isLoading || errorText !== ''" class="gt-tc gt-m-auto">
+      <div v-if="isLoading || errorText !== ''" class="gt-tc tw-m-auto">
         <div v-if="isLoading">
           <SvgIcon name="octicon-sync" class="gt-mr-3 job-status-rotate"/>
           {{ locale.loadingInfo }}
diff --git a/web_src/js/components/RepoRecentCommits.vue b/web_src/js/components/RepoRecentCommits.vue
index 77697cd413f96..c1fd40f50665f 100644
--- a/web_src/js/components/RepoRecentCommits.vue
+++ b/web_src/js/components/RepoRecentCommits.vue
@@ -125,7 +125,7 @@ export default {
       {{ isLoading ? locale.loadingTitle : errorText ? locale.loadingTitleFailed: "Number of commits in the past year" }}
     </div>
     <div class="gt-df ui segment main-graph">
-      <div v-if="isLoading || errorText !== ''" class="gt-tc gt-m-auto">
+      <div v-if="isLoading || errorText !== ''" class="gt-tc tw-m-auto">
         <div v-if="isLoading">
           <SvgIcon name="octicon-sync" class="gt-mr-3 job-status-rotate"/>
           {{ locale.loadingInfo }}
diff --git a/web_src/js/features/repo-diff-commit.js b/web_src/js/features/repo-diff-commit.js
index 3d4f0f677ae15..b812fc5353311 100644
--- a/web_src/js/features/repo-diff-commit.js
+++ b/web_src/js/features/repo-diff-commit.js
@@ -39,7 +39,7 @@ function addLink(parent, href, text, tooltip) {
   link.href = href;
   link.textContent = text;
   if (tooltip) {
-    link.classList.add('gt-border-secondary', 'gt-rounded');
+    link.classList.add('gt-border-secondary', 'tw-rounded');
     link.setAttribute('data-tooltip-content', tooltip);
   }
   parent.append(link);