/*
Error: Mixin image-fit is missing argument $heightaspect.
        on line 8 of cover.scss, in `image-fit'
        from line 8 of cover.scss

3: .content {
4:   .img-square {
5:     width: 25%;
6:     margin: 0 -4px 0 0 !important;
7: 
8:     @include image-fit();
9:   }
10: 
11:   .img-round {
12:     width: 25%;
13:     margin-right: -4px !important;

Backtrace:
cover.scss:8:in `image-fit'
cover.scss:8
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:73:in `block in perform_arguments'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:65:in `zip'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:65:in `perform_arguments'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:361:in `block in visit_mixin'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:98:in `block in with_mixin'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:98:in `with_mixin'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:349:in `visit_mixin'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block (2 levels) in visit_rule'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `map'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block in visit_rule'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:431:in `visit_rule'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block (2 levels) in visit_rule'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `map'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block in visit_rule'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:431:in `visit_rule'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `map'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `visit_children'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:169:in `block in visit_children'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:168:in `visit_children'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `block in visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:188:in `visit_root'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:159:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:8:in `visit'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/root_node.rb:36:in `css_tree'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/tree/root_node.rb:29:in `render_with_sourcemap'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/engine.rb:381:in `_render_with_sourcemap'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/engine.rb:298:in `render_with_sourcemap'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:492:in `update_stylesheet'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:209:in `each'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/plugin.rb:82:in `update_stylesheets'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/exec/sass_scss.rb:340:in `watch_or_update'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/exec/sass_scss.rb:51:in `process_result'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/exec/base.rb:52:in `parse'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/lib/sass/exec/base.rb:19:in `parse!'
C:/Ruby23-x64/lib/ruby/gems/2.3.0/gems/sass-3.4.22/bin/scss:13:in `<top (required)>'
C:/Ruby23-x64/bin/scss:22:in `load'
C:/Ruby23-x64/bin/scss:22:in `<main>'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "Error: Mixin image-fit is missing argument $heightaspect.\A         on line 8 of cover.scss, in `image-fit'\A         from line 8 of cover.scss\A \A 3: .content {\A 4:   .img-square {\A 5:     width: 25%;\A 6:     margin: 0 -4px 0 0 !important;\A 7: \A 8:     @include image-fit();\A 9:   }\A 10: \A 11:   .img-round {\A 12:     width: 25%;\A 13:     margin-right: -4px !important;"; }