diff --git a/packages/common/src/button.js b/packages/common/src/button.js
index 26d22b7b361a24f0ad5b7800bf464dd8ad2761d3..28c241926f2cb8f4de50a8ae6042754095a7a1e2 100644
--- a/packages/common/src/button.js
+++ b/packages/common/src/button.js
@@ -145,6 +145,10 @@ export class LoadingButton extends ScopedElementsMixin(LitElement) {
                 padding-left: 12px;
                 padding-right: 12px;
             }
+
+            .button {
+                width: 100%;
+            }
         `;
     }