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+<!DOCTYPE html>
+<title>
+ Multi-line column flex fragmentation: we shouldn't insert a forced break if
+ there's no preceding content at the start of a fragmentainer.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<style>
+ .multicol {
+ column-count: 2;
+ column-fill: auto;
+ column-gap: 0px;
+ height: 100px;
+ width: 100px;
+ position: relative;
+ background: red;
+ }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class="multicol">
+ <div style="display: flex; flex-direction: column; flex-wrap: wrap; width: 50px; height: 200px;">
+ <div style="height: 100px; width: 25px; break-before: column; background: green;"></div>
+ <div style="height: 100px; width: 25px; break-before: column; background: green;"></div>
+ <div style="height: 50px; width: 25px; break-before: column; background: green;"></div>
+ <div style="height: 150px; width: 25px; background: green;"></div>
+ </div>
+</div>