automatic image_tag size!

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<%= image_tag 'logo.png' %>
<img src="/assets/logo.png" width="230" height="80">

It uses dimensions by @sstephenson to add automatic images size and improve browser rendering.

How this improves browser rendering?

See: https://developers.google.com/speed/docs/best-practices/rendering#SpecifyImageDimensions


Add this line to your application's Gemfile:

gem 'dimensions-rails'


Just use the image_tag rails helper as usual, the :size options will be magically added by dimensions-rails elves!


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push -u origin my-new-feature)
  5. Create new Pull Request