iframe-translucent-color-1.html

Enable keyboard shortcuts

<!DOCTYPE html>

<html>

  <head>

  </head>

  <body>

    <!-- contents of iframe <html style="background-color: rgba(255,0,0,0.50196)">-->

    <iframe src="data:text/html,%3Chtml%20style%3D%22background-color%3A%20rgba%28255%2C0%2C0%2C0.50196%29%22%3E"

            style="position: absolute; top: 0; left: 0; width: 100px; height: 100px; border: none">

  </body>

</html>