diff --git a/src/renderer/dom/DomRenderer.ts b/src/renderer/dom/DomRenderer.ts
index 81cc0230..053c0dcc 100644
--- a/src/renderer/dom/DomRenderer.ts
+++ b/src/renderer/dom/DomRenderer.ts
@@ -69,6 +69,7 @@ export class DomRenderer extends Disposable implements IRenderer {
       actualCellHeight: null
     };
     this._updateDimensions();
+    this._injectCss();
 
     this._rowFactory = new DomRendererRowFactory(_terminal.options, document);