| Index: third_party/WebKit/LayoutTests/fast/multicol/zero-height-with-children.html | 
| diff --git a/third_party/WebKit/LayoutTests/fast/multicol/zero-height-with-children.html b/third_party/WebKit/LayoutTests/fast/multicol/zero-height-with-children.html | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..1eee8ba13465148e6cff71b693ea089e9a119d92 | 
| --- /dev/null | 
| +++ b/third_party/WebKit/LayoutTests/fast/multicol/zero-height-with-children.html | 
| @@ -0,0 +1,31 @@ | 
| +<!DOCTYPE html> | 
| +<style> | 
| +    .multicol { position:relative; margin-bottom:1px; columns:5; width:20px; column-gap:0; column-fill:auto; height:0; background:red; } | 
| +    .multicol > div { height:1px; background:blue; } | 
| +</style> | 
| +<p>There should be a small blue square below.</p> | 
| +<div style="display:flow-root; position:relative;"> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +    <div class="multicol"><div></div><div></div></div> | 
| +</div> | 
| +<script src="../../resources/testharness.js"></script> | 
| +<script src="../../resources/testharnessreport.js"></script> | 
| +<script> | 
| +    test(() => { | 
| +        var multicols = document.getElementsByClassName("multicol"); | 
| +        var offset = 0; | 
| +        for (var i = 0; i < multicols.length; i++) { | 
| +            var multicol = multicols[i]; | 
| +            assert_equals(multicol.firstChild.offsetLeft, 0); | 
| +            assert_equals(multicol.firstChild.nextSibling.offsetLeft, 4); | 
| +            assert_equals(multicol.offsetTop, offset); | 
| +            offset++; | 
| +        } | 
| +    }, "Zero-height multicol should force 1px tall columns"); | 
| +</script> | 
|  |