<!DOCTYPE HTML>
<style>
body {
margin: 0;
}
#container {
display: grid;
grid: 300px / 200px;
justify-items: start;
width: 200px;
height: 300px;
background-color: red;
}
.item {
grid-row: 1;
grid-column: 1;
background-color: green;
width: 50px;
}
</style>
<p style="height: 20px">Tests invalidation on justify-items style change. Passes if green bar is left aligned.</p>
<div id="container">
<div class="item">
<div style="height: 50px"></div>
</div>
</div>