"rake assets:precompile" Error

[shu0115]

There is not a colon.
(コロンが無いです。)

https://github.com/the88/Atreides/blob/master/app/assets/stylesheets/atreides/admin_base.css.erb#L736

---

$ rake assets:precompile
/Users/shu/.rbenv/versions/1.9.3-p327/bin/ruby /Users/shu/.rbenv/versions/1.9.3-p327/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
rake aborted!
Invalid CSS after "  left-3px": expected "{", was ";"
  (in /Users/shu/labo/atreides_sample/vendor/bundler/ruby/1.9.1/gems/atreides-2.0.5/app/assets/stylesheets/atreides/application.css)
(sass):2125