feat(demo): use Tailwind v4 in slack-confirm.tsx #2492

bukinoshita · 2025-09-29T19:29:55Z

Summary by cubic

Refactored the Slack magic link email in the demo to use Tailwind styles, aligning the template with the Tailwind setup.

Refactors
- Import Tailwind from @react-email/tailwind in slack-confirm.tsx to enable Tailwind classes.
Dependencies
- Pin @react-email/components to 1.0.0-tailwindv4.1 for Tailwind v4.1 compatibility.

changeset-bot · 2025-09-29T19:30:00Z

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vercel · 2025-09-29T19:30:00Z

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Project	Deployment	Preview	Comments	Updated (UTC)
react-email	Ready	Preview	Comment	Oct 2, 2025 3:06pm
react-email-demo	Ready	Preview	Comment	Oct 2, 2025 3:06pm

socket-security · 2025-09-29T19:30:10Z

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@react-email/components@1.0.0-tailwindv4.3

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socket-security · 2025-09-29T19:30:12Z

All alerts resolved. Learn more about Socket for GitHub.

This PR previously contained dependency changes with security issues that have been resolved, removed, or ignored.

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alwaysmeticulous · 2025-10-02T14:47:02Z

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_{Last updated for commit a66137b. This comment will update as new commits are pushed.}

cubic-dev-ai

4 issues found across 4 files

Prompt for AI agents (all 4 issues)


Understand the root cause of the following 4 issues and fix them.


<file name="apps/demo/emails/magic-links/slack-confirm.tsx">

<violation number="1" location="apps/demo/emails/magic-links/slack-confirm.tsx:43">
The Tailwind preset backing this email doesn’t define my-7.5 or leading-10.5, so this heading renders without the intended spacing/line-height. Replace them with arbitrary values (e.g., my-[30px], leading-[42px]) so the styles survive compilation.</violation>

<violation number="2" location="apps/demo/emails/magic-links/slack-confirm.tsx:46">
mb-7.5 isn’t part of the Tailwind spacing scale from pixelBasedPreset, so this paragraph loses its bottom margin. Use an arbitrary value class like mb-[30px] instead.</violation>

<violation number="3" location="apps/demo/emails/magic-links/slack-confirm.tsx:51">
mb-7.5 isn’t defined in the active Tailwind preset, so this section renders without spacing beneath it. Swap it for an arbitrary pixel value (e.g., mb-[30px]) to match the intended layout.</violation>

<violation number="4" location="apps/demo/emails/magic-links/slack-confirm.tsx:142">
mb-12.5 isn’t generated by the Tailwind preset, so the footer text loses its bottom margin. Use an arbitrary pixel class such as mb-[50px] to preserve the layout.</violation>
</file>

_{React with 👍 or 👎 to teach cubic. Mention @cubic-dev-ai to give feedback, ask questions, or re-run the review.}

cubic-dev-ai · 2025-10-02T20:36:20Z

apps/demo/emails/magic-links/slack-confirm.tsx

+            >
+              Slack Community
+            </Link>
+            <Text className="text-xs text-left mb-12.5 text-[#b7b7b7]">


mb-12.5 isn’t generated by the Tailwind preset, so the footer text loses its bottom margin. Use an arbitrary pixel class such as mb-[50px] to preserve the layout.

Prompt for AI agents

Address the following comment on apps/demo/emails/magic-links/slack-confirm.tsx at line 142: <comment>mb-12.5 isn’t generated by the Tailwind preset, so the footer text loses its bottom margin. Use an arbitrary pixel class such as mb-[50px] to preserve the layout.</comment> <file context> @@ -26,121 +28,127 @@ export const SlackConfirmEmail = ({ + > + Slack Community + </Link> + <Text className="text-xs text-left mb-12.5 text-[#b7b7b7]"> + ©2022 Slack Technologies, LLC, a Salesforce company. <br /> + 500 Howard Street, San Francisco, CA 94105, USA <br /> </file context>

Suggested change

<Text className="text-xs text-left mb-12.5 text-[#b7b7b7]">

<Text className="text-xs text-left mb-[50px] text-[#b7b7b7]">

cubic-dev-ai · 2025-10-02T20:36:20Z

apps/demo/emails/magic-links/slack-confirm.tsx

-        <Section style={codeBox}>
-          <Text style={confirmationCodeText}>{validationCode}</Text>
-        </Section>
+          <Section className="bg-[rgb(245,244,245)] rounded mb-7.5 py-10 px-2.5">


mb-7.5 isn’t defined in the active Tailwind preset, so this section renders without spacing beneath it. Swap it for an arbitrary pixel value (e.g., mb-[30px]) to match the intended layout.

Prompt for AI agents

Address the following comment on apps/demo/emails/magic-links/slack-confirm.tsx at line 51: <comment>mb-7.5 isn’t defined in the active Tailwind preset, so this section renders without spacing beneath it. Swap it for an arbitrary pixel value (e.g., mb-[30px]) to match the intended layout.</comment> <file context> @@ -26,121 +28,127 @@ export const SlackConfirmEmail = ({ - <Section style={codeBox}> - <Text style={confirmationCodeText}>{validationCode}</Text> - </Section> + <Section className="bg-[rgb(245,244,245)] rounded mb-7.5 py-10 px-2.5"> + <Text className="text-3xl text-center align-middle"> + {validationCode} </file context>

Suggested change

<Section className="bg-[rgb(245,244,245)] rounded mb-7.5 py-10 px-2.5">

<Section className="bg-[rgb(245,244,245)] rounded mb-[30px] py-10 px-2.5">

cubic-dev-ai · 2025-10-02T20:36:20Z

apps/demo/emails/magic-links/slack-confirm.tsx

+          <Heading className="text-[#1d1c1d] text-4xl font-bold my-7.5 mx-0 p-0 leading-10.5">
+            Confirm your email address
+          </Heading>
+          <Text className="text-xl mb-7.5">


mb-7.5 isn’t part of the Tailwind spacing scale from pixelBasedPreset, so this paragraph loses its bottom margin. Use an arbitrary value class like mb-[30px] instead.

Prompt for AI agents

Address the following comment on apps/demo/emails/magic-links/slack-confirm.tsx at line 46: <comment>mb-7.5 isn’t part of the Tailwind spacing scale from pixelBasedPreset, so this paragraph loses its bottom margin. Use an arbitrary value class like mb-[30px] instead.</comment> <file context> @@ -26,121 +28,127 @@ export const SlackConfirmEmail = ({ + <Heading className="text-[#1d1c1d] text-4xl font-bold my-7.5 mx-0 p-0 leading-10.5"> + Confirm your email address + </Heading> + <Text className="text-xl mb-7.5"> + Your confirmation code is below - enter it in your open browser + window and we'll help you get signed in. </file context>

Suggested change

<Text className="text-xl mb-7.5">

<Text className="text-xl mb-[30px]">

cubic-dev-ai · 2025-10-02T20:36:20Z

apps/demo/emails/magic-links/slack-confirm.tsx

+              alt="Slack"
+            />
+          </Section>
+          <Heading className="text-[#1d1c1d] text-4xl font-bold my-7.5 mx-0 p-0 leading-10.5">


The Tailwind preset backing this email doesn’t define my-7.5 or leading-10.5, so this heading renders without the intended spacing/line-height. Replace them with arbitrary values (e.g., my-[30px], leading-[42px]) so the styles survive compilation.

Prompt for AI agents

Address the following comment on apps/demo/emails/magic-links/slack-confirm.tsx at line 43: <comment>The Tailwind preset backing this email doesn’t define my-7.5 or leading-10.5, so this heading renders without the intended spacing/line-height. Replace them with arbitrary values (e.g., my-[30px], leading-[42px]) so the styles survive compilation.</comment> <file context> @@ -26,121 +28,127 @@ export const SlackConfirmEmail = ({ + alt="Slack" + /> + </Section> + <Heading className="text-[#1d1c1d] text-4xl font-bold my-7.5 mx-0 p-0 leading-10.5"> + Confirm your email address + </Heading> </file context>

Suggested change

<Heading className="text-[#1d1c1d] text-4xl font-bold my-7.5 mx-0 p-0 leading-10.5">

<Heading className="text-[#1d1c1d] text-4xl font-bold my-[30px] mx-0 p-0 leading-[42px]">

bukinoshita and others added 12 commits October 2, 2025 10:05

chore(demo): tailwind basic setup

8badcdf

fix: minor tweak

25a005f

fix: minor tweak

e37376d

fix errors

f8ae674

add tailwind config

d0a3ff6

use the new testing version

15ce1ca

update lock

ea728cc

use pixelBasedPreset on tailwind config

8f05ec9

update components

47a3cd9

sort

4a43831

sort

147568d

refactor(demo): slack with tailwind

1a0664f

gabrielmfern force-pushed the refactor/slack-with-tailwind branch from 6d1b7eb to 1a0664f Compare October 2, 2025 14:46

vercel bot deployed to Preview – react-email October 2, 2025 14:46 View deployment

vercel bot deployed to Preview – react-email-demo October 2, 2025 14:48 View deployment

migrate slack-confirm.tsx to using tailwind v4

a66137b

vercel bot deployed to Preview – react-email October 2, 2025 15:04 View deployment

vercel bot deployed to Preview – react-email-demo October 2, 2025 15:06 View deployment

gabrielmfern changed the title ~~refactor(demo): slack with tailwind~~ slack-confirm.tsx Oct 2, 2025

gabrielmfern changed the title ~~slack-confirm.tsx~~ feat(demo): use Tailwind v4 in slack-confirm.tsx Oct 2, 2025

gabrielmfern marked this pull request as ready for review October 2, 2025 20:27

gabrielmfern mentioned this pull request Oct 2, 2025

feat(demo): use Tailwind v4 on all templates #2487

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feat(demo): use Tailwind v4 in slack-confirm.tsx #2492

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	<Text className="text-xs text-left mb-12.5 text-[#b7b7b7]">
	<Text className="text-xs text-left mb-[50px] text-[#b7b7b7]">

	<Section className="bg-[rgb(245,244,245)] rounded mb-7.5 py-10 px-2.5">
	<Section className="bg-[rgb(245,244,245)] rounded mb-[30px] py-10 px-2.5">

	<Text className="text-xl mb-7.5">
	<Text className="text-xl mb-[30px]">

	<Heading className="text-[#1d1c1d] text-4xl font-bold my-7.5 mx-0 p-0 leading-10.5">
	<Heading className="text-[#1d1c1d] text-4xl font-bold my-[30px] mx-0 p-0 leading-[42px]">

feat(demo): use Tailwind v4 in slack-confirm.tsx #2492

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