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- <!DOCTYPE html>
- <html>
- <head>
- <style>
- .nav { display: table }
- .nav:after { content: " " }
- </style>
- </head>
- <body>
- <div style="font-size: 1rem"></div>
- <div class="nav">
- </div>
- <script>
- document.documentElement.style.fontSize = "10px";
- document.documentElement.offsetHeight;
- document.documentElement.style.fontSize = "15px";
- </script>
- </body>
- </html>
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