<!DOCTYPE html>
<html>
<head>
<link rel="author" href="mailto:sammy.gill@apple.com">
<link rel="help" href="https://drafts.csswg.org/css-box-4/#margin-trim-flex">
<link rel="match" href="flex-row-style-change-triggers-layout-inline-start-ref.html">
<meta name="assert" content="Flex items react to change in their flexbox's margin-trim value">
<style>
flexbox {
    display: flex;
    width: min-content;
    flex-wrap: wrap;
    border: 1px solid black;
}
.initial-margin-trim {
    margin-trim: inline-start;
}