8 lines
214 B
HTML
8 lines
214 B
HTML
<!doctype html>
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<div style="font: message-box">
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System font text.
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</div>
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<script>
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let el = document.querySelector("div");
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el.style.fontSize = (2 * parseFloat(getComputedStyle(el).fontSize)) + "px";
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</script>
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