<!DOCTYPE html>
<style>
.container {
display: flex;
}
.cell {
white-space: nowrap;
overflow: hidden;
border: 1px solid red;
text-overflow: ellipsis;
}
span {
display: inline-block;
background: green;
width: 30px;
height: 1em;
padding: 4px;
margin: 5px;
}
</style>
<div id="target" class="container" style="width: 150px;">
<div class="cell">
<span></span><span></span><span></span><span></span>
</div>
<div class="cell">
<span></span><span></span><span></span><span></span>
</div>
</div>