diff --git a/source/css/_layout/tag-plugins/navbar.styl b/source/css/_layout/tag-plugins/navbar.styl
index 05d5e9a..304f855 100644
--- a/source/css/_layout/tag-plugins/navbar.styl
+++ b/source/css/_layout/tag-plugins/navbar.styl
@@ -5,6 +5,7 @@
     background: var(--block)
     border-radius: 6px
     display: inline-flex
+    max-width: 100%
     a
       margin: 1px
       padding: 0.25em 0.75rem
diff --git a/source/css/_layout/tag-plugins/tabs.styl b/source/css/_layout/tag-plugins/tabs.styl
index 5309312..f8ecdd3 100644
--- a/source/css/_layout/tag-plugins/tabs.styl
+++ b/source/css/_layout/tag-plugins/tabs.styl
@@ -63,6 +63,7 @@
           border-radius: 2px
 
   .tab-content
+    max-width: 100%
     .tab-pane
       &:not(.active)
         display: none