The Blitapp browser can hide one or many elements before taking a screenshot. Blitapp waits for the element(s) to appear within the Browser Wait time set, then hides all of them. Enter the element definition as a query selector.
Find the query selector
In Chrome, open the Developer Tools. Under Inspector, select the element you want to hide. Right-click on it and choose Copy > CSS Selector. This will copy the query selector for the element. Paste the value into the input box.
Hide an ad or a cookie banner
This blog post is a complete example of hiding ads and cookie banners.
Hide multiple elements
To hide multiple elements, enter various selectors separated by a comma (,).