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<!DOCTYPE html>
<style>
#flex {
display: flex;
width: 60px;
flex-wrap: wrap;
gap: 20px;
}
div > div {
background: green;
width: 20px;
height: 20px;
}
</style>
<p>There should be a minimum of 6 lines.</p>
<div id="flex">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div style="background: none;"></div>
<div></div>
<div style="background: none;"></div>
<div></div>
</div>