Fill in the blank: The ___________ is a combination of both the DOM and CSSOM.
Choose an answer
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Correct answer: render tree.
Why this is the answer
HubSpot’s performance guidance treats the DOM and CSSOM as separate browser models involved in rendering. During rendering, the browser combines content structure and style information into a single structure that determines what is actually drawn on the page. That structure belongs to the Critical Rendering Path and is used for layout and painting rather than for measuring speed. Because the blank asks for the merged result of document and style data, only that combined rendering structure fits. HubSpot Developers+1
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