JSFiddle - React, Tailwind, and code Playground

HTML

<div><span id="child-one">ChildOne</span><span id="child-two">ChildTwo</span></div>

CSS

div > span { vertical-align: top; }
#child-one {
    display: inline-block;
}

#child-two {
    display: inline-block;
    overflow: hidden;
}