1 files changed, 10 insertions, 0 deletions
diff --git a/components/style/selector_matching.rs b/components/style/selector_matching.rs
index 677114f93d8..6d4c22e399b 100644
--- a/components/style/selector_matching.rs
+++ b/components/style/selector_matching.rs
@@ -12,6 +12,7 @@ use selectors::Element;
 use std::process;
 use smallvec::VecLike;
 use util::resource_files::read_resource_file;
+use util::opts;
 
 use legacy::PresentationalHintSynthesis;
 use media_queries::Device;
@@ -76,9 +77,18 @@ impl Stylist {
                 }
             }
         }
+        for &(ref contents, ref url) in &opts::get().user_stylesheets {
+            stylist.add_stylesheet(Stylesheet::from_bytes(
+                &contents, url.clone(), None, None, Origin::User));
+        }
         stylist
     }
 
+    #[inline]
+    pub fn stylesheets(&self) -> &[Stylesheet] {
+        &self.stylesheets
+    }
+
     pub fn constrain_viewport(&self) -> Option<ViewportConstraints> {
         let cascaded_rule = self.stylesheets.iter()
             .flat_map(|s| s.effective_rules(&self.device).viewport())