diff --git a/packages/block-editor/src/components/inserter/style.scss b/packages/block-editor/src/components/inserter/style.scss
index 02b826128ff60..af7efe2f23bbe 100644
--- a/packages/block-editor/src/components/inserter/style.scss
+++ b/packages/block-editor/src/components/inserter/style.scss
@@ -515,13 +515,18 @@ $block-inserter-tabs-height: 44px;
 
 .block-editor-inserter__media-panel {
 	min-height: 100%;
-	padding: 0 $grid-unit-20;
 	display: flex;
 	flex-direction: column;
-
-	@include break-medium {
-		padding: 0;
-	}
+	position: absolute;
+	top: 0;
+	left: $block-inserter-width;
+	height: 100%;
+	width: 300px;
+	padding: 0;
+	overflow: hidden;
+	background: $gray-100;
+	border-left: $border-width solid $gray-200;
+	border-right: $border-width solid $gray-200;
 
 	.block-editor-inserter__media-panel-spinner {
 		height: 100%;