diff --git a/layout/html/tests/block/bugs/282754-1.html b/layout/html/tests/block/bugs/282754-1.html
new file mode 100644
index 00000000000..358a7e5dba7
--- /dev/null
+++ b/layout/html/tests/block/bugs/282754-1.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<head>
+	<title>Testcase for bug 282754</title>
+
+	<style type="text/css">
+		p {
+			width: 329px;
+			height: 25px;
+			position: relative;
+			background: red;
+		}
+
+		p.with-overflow-hidden
+		{
+			overflow: hidden;
+		}
+
+		span {
+			background: lime;
+			position: absolute;
+			width: 100%;
+			height: 100%;
+		}
+
+
+	</style>
+
+</head>
+
+<body>
+
+<p class="with-overflow-hidden"><span></span>Test</p>
+
+<p class="without-overflow-hidden"><span></span>Test</p>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/layout/html/tests/block/bugs/282754-2.html b/layout/html/tests/block/bugs/282754-2.html
new file mode 100644
index 00000000000..2f7ee739b5a
--- /dev/null
+++ b/layout/html/tests/block/bugs/282754-2.html
@@ -0,0 +1,13 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+<head>
+<style>div.col { -moz-column-count:2; -moz-column-gap:2em }
+</style>
+</head>
+  <body>
+  <div class="col" style="position: absolute; left: 100px; top: 400px; width: 200px; padding:30px; border:1px solid black;">
+    This text is in a positioned box with columns, without scrollbars.
+    <div style="position: absolute; bottom:0; left:0;">BL</div>
+  </div>
+  </body>
+</html>
