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18 lines
604 B
18 lines
604 B
<!DOCTYPE html>
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<body style="margin: 0; padding: 0;">
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<div style="position: absolute; overflow: hidden;
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left: 0; top: 0; width: 250px; height: 250px;
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background: green"
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id="greenbox">
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<div style="position: relative; left: 75px; top: 75px;
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width: 75px; height: 75px;
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background: green"
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id="redbox">
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</div>
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<script>
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var redbox = document.getElementById('redbox');
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redbox.onmouseover = function() { redbox.style.background = 'red'; };
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redbox.onmouseout = function() { redbox.style.background = 'green'; };
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</script>
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</div>
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