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+<!doctype html>
+<html lang=en>
+ <meta charset=utf-8>
+ <title>CSS-contain test: paint containment on body prevents text-orientation propagation</title>
+ <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
+ <meta name=flags content="">
+ <meta name=assert content="paint containment on body prevents text-orientation propagation">
+ <link rel="match" href="reference/contain-body-t-o-001-ref.html">
+ <link rel=help href="https://drafts.csswg.org/css-contain-1/#contain-property">
+
+<style>
+html {
+ writing-mode: vertical-lr;
+ direction: rtl;
+ width: 100vw;
+ height: 100vh;
+ overflow: hidden;
+}
+body {
+ margin: 0;
+ border-top: 100px solid red;
+ border-bottom: 100px solid green;
+ width: 100vw;
+ height: 100vh;
+ text-orientation: upright;
+ contain: paint;
+}
+p {
+ margin: auto;
+ padding: 150px 0;
+ writing-mode: horizontal-tb;
+ direction: ltr;
+}
+</style>
+
+<p>Test passes if there is no red.