Has anyone gotten HTML emails working with Twitter

问题:

I'm using the premailer-rails3 gem which pulls styles inline for html emails, and I'm trying to get it working with Twitter bootstrap.

https://github.com/fphilipe/premailer-rails3

It looks like some styles come in correctly, but not all of them. I'm wondering if anyone has a nice working example of getting their Twitter Bootstrap css (modified or not) into an html email.

Thanks!

回答1:

If you mean "Can I use the stylistic presentation of Bootstrap in an email?" then you can, though I don't know anybody that has done it yet. You'll need to recode everything in tables though.

If you are after functionality, it depends on where your emails are viewed. If a significant proportion of your users are on Outlook, Gmail, Yahoo or Hotmail (and these typically add up to around 75% of email clients) then a lot of Bootstrap's goodness is not possible. Mac Mail, iOS Mail and Gmail on Android are much better at rendering CSS, so if you are targeting mostly mobile devices it's not quite so bad.

• JavaScript - completely off limits. If you try, you'll probably go straight to email hell (a.k.a. spam folder). This means that LESS is also out of bounds, although you can obviously use the resulting CSS styles if you want to.
• Inline CSS is much safer to use than any other type of CSS (embedded is possible, linked is a definite no). Media queries are possible, so you can have some kind of responsive design. However, there is a long list of CSS attributes that don't work - essentially, the box model is largely unsupported in email clients. You need to structure everything with tables.
• font-face - you can only use external images. All other external resources (CSS files, fonts) are excluded.
• glyphs and sprites - because of Outlook 2007's weird implementation of background-images (VML), you cant use background-repeat or position.
• pseudo-selectors are not possible - e.g. :hover, :active states cannot be styled separately

There are loads of answers on SO, and lots of other links on the internet at large.

• http://www.emailology.org/
• http://www.email-standards.org/
• http://htmlemailboilerplate.com/
• http://www.campaignmonitor.com/css/

回答2:

I apologize for resurecting this old thread, but I just wanted to let everyone know there is a very close Bootstrap like CSS framework specifically created for email styling, here is the link: http://zurb.com/ink/

Hope it helps someone.

Ninja edit: It has since been renamed to Foundation for Emails and the new link is: https://foundation.zurb.com/emails.html

回答3:

Here are a few things you cant do with email:

• Include a section with styles. Apple Mail.app supports it, but Gmail and Hotmail do not, so it's a no-no. Hotmail will support a style section in the body but Gmail still doesn't.
• Link to an external stylesheet. Not many email clients support this, best to just forget it.
• Background-image / Background-position. Gmail is also the culprit on this one.
• Clear your floats. Gmail again.
• Margin. Yep, seriously, Hotmail ignores margins. Basically any CSS positioning at all doesn't work.
• Font-anything. Chances are Eudora will ignore anything you try to declare with fonts.

Source: http://css-tricks.com/using-css-in-html-emails-the-real-story/

Mailchimp has email templates you can use - here

A few more resources that should help you

• Best practices for styling HTML emails
• Styling html in email
• Styling HTML email for Gmail

回答4:

You can use this https://github.com/advancedrei/BootstrapForEmail for b-strapping your email.

回答5:

I spent some time recently looking into building html email templates, the best solution I found was to use this http://htmlemailboilerplate.com/. I have since built 3 quite complex templates and they have worked well in the various email clients.

回答6:

Hi Brian Armstrong， visit this link.

This blog tells you how to integrate Rails with Bootstrap less (using premailer-rails).

If you're using bootstrap sass, you could do the same:

start by importing some Bootstrap sass files into email.css.scss

@import "bootstrap-sprockets";
@import "bootstrap/variables";
@import "bootstrap/mixins";
@import "bootstrap/scaffolding";
@import "bootstrap/type";
@import "bootstrap/buttons";
@import "bootstrap/alerts";
@import 'bootstrap/normalize';
@import 'bootstrap/tables';
@import 'bootstrap/progress-bars';

and then in your view <head> section add <%= stylesheet_link_tag "email" %>

回答7:

The best approach I've come up with is to use Sass imports on a selected basis to pull in your bootstrap (or any other) styles into emails as might be needed.

First, create a new scss parent file something like email.scss for your email style. This could look like this:

    // Core variables and mixins
    @import "css/main/ezdia-variables";

    @import "css/bootstrap/mixins";
    @import "css/main/ezdia-mixins";

    // Import base classes
    @import "css/bootstrap/scaffolding";
    @import "css/bootstrap/type";
    @import "css/bootstrap/buttons";
    @import "css/bootstrap/alerts";

    // nest conflicting bootstrap styles
    .bootstrap-style {
        //use single quotes for nested imports
        @import 'css/bootstrap/normalize';
        @import 'css/bootstrap/tables';
    }

    @import "css/main/main";

    // Main email classes
    @import "css/email/zurb";
    @import "css/email/main";

Then in your email templates, only reference your compiled email.css file, which only contains the selected bootstrap styles referenced and nested properly in your email.scss.

For example, certain bootstrap styles will conflict with Zurb's responsive table style. To fix that, you can nest bootstrap's styles within a parent class or other selector in order to call bootstrap's table styles only when needed.

This way, you have the flexibility to pull in classes only when needed. You'll see that I use http://zurb.com/ which is a great responsive email library to use. See also http://zurb.com/ink/

Lastly, use a premailer like https://github.com/fphilipe/premailer-rails3 mentioned above to process the style into inline css, compiling inline styles to only what is used in that particular email template. For instance, for premailer, your ruby file could look something like this to compile an email into inline style.

    require 'rubygems' # optional for Ruby 1.9 or above.
    require 'premailer'

    premailer = Premailer.new('http://www.yourdomain.com/TestSnap/view/emailTemplates/DeliveryReport.jsp', :warn_level => Premailer::Warnings::SAFE)

    # Write the HTML output
    File.open("delivery_report.html", "w") do |fout|
      fout.puts premailer.to_inline_css
    end

    # Write the plain-text output
    File.open("output.txt", "w") do |fout|
      fout.puts premailer.to_plain_text
    end

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

Hope this helps! Been struggling to find a flexible email templating framework across Pardot, Salesforce, and our product's built-in auto-response and daily emails.

回答8:

The trick here is that you don't want to include the whole bootstrap. The issue is that email clients will ignore the media queries and process all the print styles which have a lot of !important statements.

Instead, you need to only include the specific parts of bootstrap that you need. My email.css.scss file looks like this:

@import "bootstrap-sprockets";
@import "bootstrap/variables";
@import "bootstrap/mixins";
@import "bootstrap/scaffolding";
@import "bootstrap/type";
@import "bootstrap/buttons";
@import "bootstrap/alerts";

@import 'bootstrap/normalize';
@import 'bootstrap/tables';