Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

HTML

<div class="outer">
    <div class="t1">1</div>
    <div class="t1">2</div>
    <div class="t1">3</div>
</div>

<div id="output"></div>

.t1{
    display:inline-block;
    width:400px;
}
.outer{
    white-space:nowrap;
    background:blue;
}

$("#output").text($(".outer").width())

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