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<!DOCTYPE html>
<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
<style>
.multi-column {
columns: 2;
height: 90px;
column-width: 100px;
width: 330px;
}
body {
margin: 0px;
}
#flexbox {
border: 2px solid rgb(96 139 168);
display: flex;
column-gap: 10px;
row-gap: 10px;
width: 90px;
flex-wrap: wrap;
height: 170px;
flex-direction: column;
}
.items {
background-color: rgb(96 139 168 / 0.2);
width: 30px;
height: 30px;
break-before: avoid-column;
}
.row-rule {
background-color: gold;
height: 10px;
width: 30px;
position: absolute;
width: 90px;
}
</style>
<div class="row-rule" style="top: 32px; left: 2px;"></div>
<div class="row-rule" style="top: 30px; left: 175px;"></div>
<div class="multi-column">
<div id="flexbox">
<div class="items">1</div>
<div class="items">2</div>
<div class="items">3</div>
<div class="items">4</div>
</div>
</div>