diff --git a/packages/block-editor/src/hooks/layout.scss b/packages/block-editor/src/hooks/layout.scss
index 8ac39b1dec5f41..83a044e3cdca75 100644
--- a/packages/block-editor/src/hooks/layout.scss
+++ b/packages/block-editor/src/hooks/layout.scss
@@ -12,6 +12,10 @@
 	}
 }
 
+.block-editor-block-inspector .block-editor-hooks__layout-controls-unit-input {
+	margin-bottom: 0;
+}
+
 .block-editor-hooks__layout-controls-reset {
 	display: flex;
 	justify-content: flex-end;
diff --git a/packages/block-editor/src/layouts/constrained.js b/packages/block-editor/src/layouts/constrained.js
index 5e3b7eab405d89..490b1e2e9afd28 100644
--- a/packages/block-editor/src/layouts/constrained.js
+++ b/packages/block-editor/src/layouts/constrained.js
@@ -71,6 +71,7 @@ export default {
 				<div className="block-editor-hooks__layout-controls">
 					<div className="block-editor-hooks__layout-controls-unit">
 						<UnitControl
+							className="block-editor-hooks__layout-controls-unit-input"
 							label={ __( 'Content' ) }
 							labelPosition="top"
 							__unstableInputWidth="80px"
@@ -91,6 +92,7 @@ export default {
 					</div>
 					<div className="block-editor-hooks__layout-controls-unit">
 						<UnitControl
+							className="block-editor-hooks__layout-controls-unit-input"
 							label={ __( 'Wide' ) }
 							labelPosition="top"
 							__unstableInputWidth="80px"