app/com/gu/viewer/views/overlay.scala.html

<div class="overlay--hidden" data-role="overlay">
    <div class="overlay__messageBox">
        <div class="overlay__close"></div>
        <div class="overlay__image"></div>
        <div>
            <span class="overlay__text">An email has been sent to your Guardian email address. To preview this page in the app, open your email on the device and follow the instructions.</span>
            <span class="overlay__ok">Ok</span>
        </div>
    </div>
</div>