<!DOCTYPE html>
<link rel="help" href="https://www.w3.org/TR/css-position-3/#abspos-breaking">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<!-- Fragmented OOF element with block-size percentage resolution and overflow. -->
<style>
  #multicol {
    /* Set things up so that the absolutely positioned element takes up two
       columns of 50px each. Start in the second column so offset by negative
       50px margin. */
    columns: 5;
    width: 250px;
    height: 100px;
    marg