Open the Wix App Market. Select the HTML/ iFrame element. Click Add to Site.
Open the HTML Settings window. Select HTML code under Mode. Copy and paste this code snippet in the code field. Click on Update and exit the HTML Settings pop-up.
The iFrame will now contain your Birthday Countdown App. You may now change the position of and adjust the size of the Birthday Countdown App in the Wix website editor. Don't forget to click on Save and Publish in your Wix website editor to save your edits and publish them on the live website. Your Birthday Countdown App will be visible on your live web page. Go to your live, published Wix page to start editing the Birthday Countdown App.
To edit your Birthday Countdown on Wix:
Visit your live Wix web page and select the gear icon in the upper right corner of your Birthday Countdown App.