Remove backdrop-filter from docs subnav

Fixes #31163.

diff --git a/site/assets/scss/_subnav.scss b/site/assets/scss/_subnav.scss
index 89c14b3821845f94968e6a6361fbb0d726011598..c65b665db3ed1ed4bb6300370838293224209262 100644 (file)
--- a/site/assets/scss/_subnav.scss
+++ b/site/assets/scss/_subnav.scss
@@ -2,8 +2,7 @@
   // The position and z-index are needed for the dropdown to stay on top of the content
   position: relative;
   z-index: $zindex-sticky;
-  background-color: rgba($white, .75);
-  backdrop-filter: blur(1rem);
+  background-color: rgba($white, .95);
   box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .05), inset 0 -1px 0 rgba(0, 0, 0, .15);
 
   .dropdown-menu {