Improve browser rendering adding the size to <img> tags
Ruby HTML JavaScript CSS
Latest commit 1a3a41b Dec 19, 2015 @elia Merge pull request #18 from brandondrew/patch-1
auxiliary verb inversion, & a few other things...


Build Status

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

It uses dimensions by @sstephenson to automatically add size attributes to image tags, which speeds browser rendering.

How does this improve browser rendering?



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!

If for any reason you need to disable dimensions-rails just pass :dimensions => false to image_tag.


  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