jbutko · April 10, 2014 17:35
diff --git a/styles.scss b/styles.scss
 .second {
   .first ~ & {
       /* styles to be applied to .second if a .first exists at the same node level */   
   }
 }

 // From http://stackoverflow.com/questions/15246387/css-and-or-sass-sibling-selector-upwards
	.second {
	.first ~ & {
	/* styles to be applied to .second if a .first exists at the same node level */
	}
	}

	// From http://stackoverflow.com/questions/15246387/css-and-or-sass-sibling-selector-upwards