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+<!DOCTYPE html>
+<html>
+  <meta charset="utf-8">
+  <title>CSS Flexible Box Layout Test: Test flexbox intrinsic inline-size, gap, and absolute-positioned children</title>
+  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
+  <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
+  <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#intrinsic-sizes">
+  <link rel="help" href="https://drafts.csswg.org/css-align-3/#gaps">
+  <link rel="match" href="flexbox-gap-position-absolute-ref.html">
+  <meta name="assert" content="This test verifies the absolute-positioned children do not contribute the gap size to the flexbox's intrinsic inline-size.">
+
+  <style>
+  div {
+    display: inline-flex;
+    gap: 100px;
+    background: fuchsia;
+  }
+  </style>
+
+  <div>
+    <span style="position: absolute;"></span>
+    <span style="position: fixed;"></span>
+    <span>B</span>
+    <span>C</span>
+  </div>
+</html>