diff --git a/packages/block-library/src/gallery/editor.scss b/packages/block-library/src/gallery/editor.scss
index f5bedb035fb6b9..d0ef7ffbff1c36 100644
--- a/packages/block-library/src/gallery/editor.scss
+++ b/packages/block-library/src/gallery/editor.scss
@@ -45,20 +45,6 @@ figure.wp-block-gallery {
 	}
 	.block-editor-media-placeholder {
 		margin: 0;
-
-		&::before {
-			box-shadow: 0 0 0 $border-width $white inset, 0 0 0 3px var(--wp-admin-theme-color) inset;
-			content: "";
-			// Shown in Windows 10 high contrast mode.
-			outline: 2px solid transparent;
-			position: absolute;
-			top: 0;
-			right: 0;
-			bottom: 0;
-			left: 0;
-			z-index: 1;
-			pointer-events: none;
-		}
 		.components-placeholder__label {
 			display: flex;
 		}