diff --git a/plugins/lazyYT/assets/stylesheets/lazyYT_mobile.scss b/plugins/lazyYT/assets/stylesheets/lazyYT_mobile.scss
new file mode 100644
index 000000000..149a8d9b8
--- /dev/null
+++ b/plugins/lazyYT/assets/stylesheets/lazyYT_mobile.scss
@@ -0,0 +1,3 @@
+.lazyYT {
+  max-width: 100%;
+}
diff --git a/plugins/lazyYT/plugin.rb b/plugins/lazyYT/plugin.rb
index 8dda406d4..6993233ea 100644
--- a/plugins/lazyYT/plugin.rb
+++ b/plugins/lazyYT/plugin.rb
@@ -8,6 +8,7 @@ register_asset "javascripts/lazyYT.js"
 
 # stylesheet
 register_asset "stylesheets/lazyYT.css"
+register_asset "stylesheets/lazyYT_mobile.scss", :mobile
 
 # freedom patch YouTube Onebox
 class Onebox::Engine::YoutubeOnebox