Question 1

What is an inline CSS converter?

Accepted Answer

It takes an email HTML file that uses a <style> block and moves matching rules onto each element as inline style attributes, so the same markup renders consistently in clients that ignore stylesheets. This is the same process the popular Juice and Premailer libraries perform.

Question 2

Why do emails need inline styles?

Accepted Answer

Email clients are far less consistent about supporting

Question 3

What happens to media queries and :hover rules?

Accepted Answer

They cannot be inlined, so they are preserved in a

Question 4

How does specificity and !important work?

Accepted Answer

Rules are applied with a real browser cascade: higher specificity wins, later source order breaks ties, and !important declarations override normal ones. Existing inline styles win unless a stylesheet rule is !important — matching how browsers resolve conflicts.

Question 5

Will it overwrite my existing inline styles?

Accepted Answer

By default existing inline styles are kept and take priority in the cascade. If you want a clean slate, enable "Overwrite existing inline styles" and the converter resets each style attribute before inlining from your stylesheet.

Question 6

Are Outlook MSO conditional comments preserved?

Accepted Answer

Yes. comments are preserved exactly, so bulletproof Outlook column tricks and other conditionals keep working in the converted output.

Question 7

Is my HTML uploaded anywhere?

Accepted Answer

No. Everything runs locally in your browser. Your markup never leaves your machine.

Inline CSS Converter

About Inline CSS Converter