​x
 
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<!DOCTYPE html>
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<title>My Example</title>
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​
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous">
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​
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<style>
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body {
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padding-top: 1em;
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}
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</style> <div class="container-fluid">
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<div class="input-group mb-3">
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  <input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="button-addon2">
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  <button class="btn btn-outline-secondary" type="button" id="button-addon">Button</button>
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</div>
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​
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</div>
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<!-- Bundled -->
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<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-gtEjrD/SeCtmISkJkNUaaKMoLD0//ElJ19smozuHV6z3Iehds+3Ulb9Bn9Plx0x4" crossorigin="anonymous"></script>