diff --git a/styles.css b/styles.css
index 5dab7a0..2934e52 100644
--- a/styles.css
+++ b/styles.css
@@ -573,14 +573,16 @@ button:focus{outline:none}
   position:fixed;inset:0;z-index:300;
   display:flex;flex-direction:column;
   background:var(--bg);
-  transform:translateY(100%);
+  /* translate3d keeps the element on a stable GPU layer without will-change's
+     layer-creation/destruction cycle that causes WebView to flash the content below */
+  transform:translate3d(0,100%,0);
   transition:transform .35s cubic-bezier(.4,0,.2,1);
   overflow:hidden;
-  will-change:transform;
-  backface-visibility:hidden;
+  backface-visibility:hidden;-webkit-backface-visibility:hidden;
+  contain:layout style paint;
   isolation:isolate;
 }
-.np-overlay.open{transform:translateY(0)}
+.np-overlay.open{transform:translate3d(0,0,0)}
 
 /* Blurred album art as background — two layers for crossfade */
 .np-bg{