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-rw-r--r--layout/reftests/first-line/insertion-in-first-line-4.html12
1 files changed, 12 insertions, 0 deletions
diff --git a/layout/reftests/first-line/insertion-in-first-line-4.html b/layout/reftests/first-line/insertion-in-first-line-4.html
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index 0000000000..316b6dd42e
--- /dev/null
+++ b/layout/reftests/first-line/insertion-in-first-line-4.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<style>
+ div { color: red; }
+ div::first-line { color: green }
+</style>
+<div id="x"><span id="y">green</span></div>
+<script>
+ x.offsetWidth;
+ var span = document.createElement('span');
+ span.textContent = 'This should be ';
+ x.insertBefore(span, y);
+</script>