12 lines
188 B
HTML
12 lines
188 B
HTML
<style>
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.c~*{}
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</style>
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<script>
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document.addEventListener('DOMContentLoaded', () => {
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b.select()
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a.className = "c"
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})
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</script>
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<details>
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<summary id="a"></summary>
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<textarea id="b">
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