K i created hook element.
Suppose if i want place ad as shown in screenshot then i need to place script wrap code with AdSense code in hook element section instead of my site header. Also i need to put CSS in theme customization to reserve space for ad.
Is it right ?
Yes that’s correct. And David’s CSS basically does that assuming you’re using the correct CSS class for the ad’s div wrapper element. It reserves a space of 300px as indicated on the min-height. 😀