<!DOCTYPE html>
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<html>
<head>
  <title>Reference: Testing safe overflow-position for align-content, justify-content, and align-items in flex containers</title>
  <link rel="author" title="Mihir Iyer" href="mailto:miyer@mozilla.com">
  <meta charset="utf-8">
  <style>
    .flex {
      display: flex;
      width: 85px;
      height: 65px;
      border: 1px solid black;
      align-content: flex-