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<!DOCTYPE html>
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<html>
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<body>
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<style>
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div:empty { display: none; }
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</style>
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<div>hello world</div>
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<script>
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const div = document.querySelector('div');
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div.getBoundingClientRect();
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div.innerHTML = '';
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div.getBoundingClientRect();
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div.innerHTML = 'PASS';
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</script>
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</body>
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</html>
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