<!DOCTYPE HTML>
<style>
body {
margin: 0;
}
#container {
display: grid;
grid: 300px / 100px 100px;
justify-items: safe end;
width: 200px;
height: 300px;
background-color: red;
}
.item1 {
grid-row: 1;
grid-column: 1;
background-color: green;
width: 160px;
}
.item2 {
grid-row: 1;
grid-column: 2;
background-color: green;
width: 50px;
</style>
<p style="height: 20px">Tests invalidation on justify-items style change. Passes if there is no red.</p>
<div id="container">
<div class="item1">
<div style="height: 50px"></div>
</div>
<div class="item2">
<div style="height: 50px"></div>
</div>
</div>