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development
HTML Email Tester
Inline CSS into email HTML and preview the local rendered result.
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Fragment mode
Keep @ rules
Minify inline CSS
Inline CSS
Clear
HTML
<main class="email"> <h1>Welcome aboard</h1> <p>dailyharbors keeps your developer utilities close at hand.</p> <a class="button" href="#">Open dashboard</a> </main>
CSS
.email { font-family: Arial, sans-serif; padding: 32px; background: #0f172a; color: #f8fafc; } h1 { color: #38bdf8; } p { line-height: 1.6; } .button { display: inline-block; padding: 12px 18px; border-radius: 6px; background: #f59e0b; color: #111827; text-decoration: none; font-weight: 700; }
Inlined HTML