Browser & Web Performance · Junior · Question 3 of 75

What is the render tree?

✓Correct answer: DOM and CSSOM combined, containing only the visible nodes with their computed styles
2A copy of the DOM that also includes <head> and display: none elements
3The list of HTTP requests the page makes

Explanation

Elements with display: none and non-visual nodes like <head> are left out. The render tree is the input to layout.

Further reading

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