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- <html>
- <head>
- <meta name="viewport" content="width=device-width, initial-scale=1"></meta>
- </head>
- <body>
- <p>Greetings planet</p>
- </body>
- <script>
- function toggleFullscreen() {
- if (!document.fullscreenElement) {
- document.documentElement.requestFullscreen();
- } else {
- document.exitFullscreen();
- }
- }
- document.addEventListener('click', function(e) { toggleFullscreen(); }, false);
- const viewport = document.getElementsByTagName('meta')[0];
- const defaultValue = viewport.getAttribute('content');
- function setViewportFit(fit) {
- if (fit) {
- viewport.setAttribute('content', defaultValue + ', viewport-fit=' + fit);
- } else {
- viewport.setAttribute('content', defaultValue);
- }
- }
- </script>
- </html>
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