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+<!DOCTYPE html>
+<!-- Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ -->
+<!-- Testcase for how we fragment an empty fixed-height flex container, with
+ various combinations of margin/border/padding helping it to be too tall,
+ with the flex container overflowing its fixed-height-block parent,
+ and with the flex container having "flex-direction: column".
+-->
+<html>
+ <head>
+ <style>
+ .multicol {
+ height: 10px;
+ width: 100px;
+ column-width: 20px;
+ column-fill: auto;
+ border: 2px solid orange;
+ }
+ .fixedHeightBlock {
+ height: 2px;
+ }
+ .flexContainer {
+ display: flex;
+ flex-direction: column;
+ background: teal;
+ /* border-width is 0 by default; some sub-testcases will increase it. */
+ border: 0 dashed black;
+ }
+ </style>
+ </head>
+ <body>
+ <!-- NO BORDERS/PADDING -->
+ <!-- ================== -->
+ <!-- content fits exactly into 1 column: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 10px"></div>
+ </div></div>
+
+ <!-- content fits, but margin-top pushes it to overflow: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ margin-top: 2px;"></div>
+ </div></div>
+
+ <!-- content is too tall, by 1px: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 11px"></div>
+ </div></div>
+
+ <!-- BORDERS/PADDING ON TOP -->
+ <!-- ====================== -->
+ <!-- content fits, but border-top makes us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ border-top-width: 2px"></div>
+ </div></div>
+
+ <!-- content fits, but padding-top makes us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ padding-top: 2px"></div>
+ </div></div>
+
+ <!-- content fits, but border/padding-top make us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ border-top-width: 1px;
+ padding-top: 1px"></div>
+ </div></div>
+
+ <!-- BORDERS/PADDING ON BOTTOM -->
+ <!-- ========================= -->
+ <!-- content fits, but border-bottom-width makes us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ border-bottom-width: 2px"></div>
+ </div></div>
+
+ <!-- content fits, but padding-bottom makes us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ padding-bottom: 2px"></div>
+ </div></div>
+
+ <!-- content fits, but border/padding-bottom make us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ border-bottom-width: 1px;
+ padding-bottom: 1px"></div>
+ </div></div>
+
+ <!-- BORDERS/PADDING ON TOP AND BOTTOM -->
+ <!-- ================================= -->
+ <!-- content fits, but border-top/bottom combined make us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ border-top-width: 1px;
+ border-bottom-width: 1px"></div>
+ </div></div>
+
+ <!-- content fits, but padding-top/bottom combined make us too tall: -->
+ <div class="multicol"><div class="fixedHeightBlock">
+ <div class="flexContainer" style="height: 9px;
+ padding-top: 1px;
+ padding-bottom: 1px"></div>
+ </div></div>
+
+ </body>
+</html>