Premailer – prep your HTML email by inlining CSS

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Premailer – prep your HTML email by inlining CSS

Premailer – prep your HTML email by inlining CSS:

At what must be the nexus of the open source universe, we’re posting a cool project from Alex Dunae aka theCHANGELOG. Premailer is a Ruby library to help you prep your HTML email templates for better viewing in most web clients by:

• making all your CSS inline
• changing relative links to absolute links
• moving any CSS pseudo-classes (like :hover) to the
• checking your HTML and CSS for compatibiliy with e-mail programs
• creating a plain-text version of your message

To use:

sudo gem install premailer

and then

premailer = Premailer.new('http://example.com/myfile.html', :warn_level => Premailer::Warnings::SAFE)

# Write the HTML output
fout = File.open("output.html", "w")
fout.puts premailer.to_inline_css
fout.close

# Write the plain-text output
fout = File.open("ouput.txt", "w")
fout.puts premailer.to_plain_text
fout.close

# Output any CSS warnings
premailer.warnings.each do |w|
  puts "#w:message (#w:level) may not render properly in #w:clients"
end

For the terminally challenged there’s also a nifty web interface

Source on GitHub Home page