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+<!DOCTYPE html>
+<html>
+ <meta charset="utf-8">
+ <title>CSS Flexible Box Layout Test: Test flex container's overflow rect</title>
+ <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
+ <link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable">
+ <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+ <meta name="assert" content="When computing flex container's overflow area, its padding rect is added to flex item's margin-box, not flex item's overflow rect. This test verifies that last part; making sure it's not mistakenly added to the flex container's overflow rect.">
+
+ <style>
+ .scroll {
+ overflow: auto;
+ width: 100px;
+ height: 100px;
+ background: red;
+ }
+ .flexContainer {
+ display: flex;
+ writing-mode: vertical-rl;
+ direction: rtl;
+ padding: 25px;
+ background: green;
+ }
+ .flexItem {
+ flex-shrink: 0;
+ width: 30px;
+ height: 30px;
+ margin: 10px;
+ }
+ .flexItemOverflow {
+ width: 65px;
+ height: 65px;
+ }
+ </style>
+
+ <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+ <div class="scroll">
+ <div class="flexContainer">
+ <div class="flexItem">
+ <!-- The item's top and left overflow edges should exactly touch the
+ flex container's top and left padding edges. -->
+ <div class="flexItemOverflow"></div>
+ </div>
+ </div>
+ </div>
+</html>