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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Display: Generated ::before and ::after on display:contents</title>
+<link rel="author" title="Rune Lillesveen" href="mailto:rune@opera.com">
+<link rel="help" href="https://drafts.csswg.org/css-display-3/#valdef-display-contents">
+<link rel="match" href="display-contents-pass-ref.html">
+<style>
+    /* Disable kerning because kerning may differ for different node tree. */
+    html { font-kerning: none; font-feature-settings: "kern" off; }
+    div { display: contents }
+    .p::before { content: "P" }
+    .a::before { content: "A" }
+    .s::after { content: "S" }
+</style>
+<p>You should see the word PASS below.</p>
+<div><!--
+ --><div><div class="p"></div></div><!--
+ --><div></div><!--
+ --><div class="a"></div><!--
+ --><div>S<div class="s"></div></div>
+</div>