diff --git a/src/generate.ts b/src/generate.ts
index a6a3045..7423c5a 100644
--- a/src/generate.ts
+++ b/src/generate.ts
@@ -64,7 +64,7 @@ export function createProjectForm({
 
   const form = document.createElement('form');
   form.method = 'POST';
-  form.setAttribute('style', 'display:none!important;');
+  form.style.setProperty('display', 'none', 'important');
   form.append(...inputs);
   return form;
 }
diff --git a/src/helpers.ts b/src/helpers.ts
index 7114ca6..55e80fb 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -79,7 +79,7 @@ function setFrameDimensions(frame: HTMLIFrameElement, options: EmbedOptions = {}
   if (width) {
     frame.setAttribute('width', width);
   } else {
-    frame.setAttribute('style', 'width:100%;');
+    frame.style.setProperty('width', '100%');
   }
 }