diff --git a/packages/docs/src/App.vue b/packages/docs/src/App.vue
index a932b36818bf4cc93ee454f32c12e518870bb77f..c1c19aefc02fbb096b13dac20ab9d71aa6843363 100644
--- a/packages/docs/src/App.vue
+++ b/packages/docs/src/App.vue
@@ -142,6 +142,9 @@ watchEffect(() => {
   max-height: calc(100vh - var(--app-header-height) - var(--app-header-margin));
   width: var(--app-anchor-width);
   z-index: 8;
+  .o-anchor-line {
+    flex-shrink: 0;
+  }
   @include respond-to('<=pad_v') {
     display: none;
   }