diff --git a/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindReplaceWidget.ts b/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindReplaceWidget.ts
index 493ff8ed8cbed8ae8285b9f9597bfb2454201a58..c9866a9d8dffd1ea0cdd740a1c43f183905dbe5b 100644
--- a/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindReplaceWidget.ts
+++ b/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindReplaceWidget.ts
@@ -345,8 +345,7 @@ export abstract class SimpleFindReplaceWidget extends Widget {
 		this.updateButtons(this.foundMatch);
 
 		setTimeout(() => {
-			dom.addClass(this._domNode, 'visible');
-			dom.addClass(this._domNode, 'visible-transition');
+			this._domNode.classList.add('visible', 'visible-transition');
 			this._domNode.setAttribute('aria-hidden', 'false');
 			this._findInput.select();
 		}, 0);
@@ -364,8 +363,7 @@ export abstract class SimpleFindReplaceWidget extends Widget {
 		this._isVisible = true;
 
 		setTimeout(() => {
-			dom.addClass(this._domNode, 'visible');
-			dom.addClass(this._domNode, 'visible-transition');
+			this._domNode.classList.add('visible', 'visible-transition');
 			this._domNode.setAttribute('aria-hidden', 'false');
 
 			this.focus();
@@ -391,8 +389,7 @@ export abstract class SimpleFindReplaceWidget extends Widget {
 		}
 
 		setTimeout(() => {
-			dom.addClass(this._domNode, 'visible');
-			dom.addClass(this._domNode, 'visible-transition');
+			this._domNode.classList.add('visible', 'visible-transition');
 			this._domNode.setAttribute('aria-hidden', 'false');
 			this._updateButtons();
 
diff --git a/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindWidget.ts b/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindWidget.ts
index 18f496c77e868154113b5440b79b6cb705b1bd38..e15e3ee78faad5db15bd82d9eded1a4c95e6c4fe 100644
--- a/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindWidget.ts
+++ b/src/vs/workbench/contrib/codeEditor/browser/find/simpleFindWidget.ts
@@ -212,8 +212,7 @@ export abstract class SimpleFindWidget extends Widget {
 		this.updateButtons(this.foundMatch);
 
 		setTimeout(() => {
-			dom.addClass(this._innerDomNode, 'visible');
-			dom.addClass(this._innerDomNode, 'visible-transition');
+			this._innerDomNode.classList.add('visible', 'visible-transition');
 			this._innerDomNode.setAttribute('aria-hidden', 'false');
 			this._findInput.select();
 		}, 0);
@@ -227,8 +226,7 @@ export abstract class SimpleFindWidget extends Widget {
 		this._isVisible = true;
 
 		setTimeout(() => {
-			dom.addClass(this._innerDomNode, 'visible');
-			dom.addClass(this._innerDomNode, 'visible-transition');
+			this._innerDomNode.classList.add('visible', 'visible-transition');
 			this._innerDomNode.setAttribute('aria-hidden', 'false');
 		}, 0);
 	}