JSFiddle - React, Tailwind, and code Playground

HTML

<div class = "parent">
<span class="ib-half">Left</span>
    <span class="ib-half">Right</span>
</div>

CSS

span{
    background:#bdbdbd;
}
.ib-half {
    display: inline-block;
    width: 50%;
    font-size:10px;
}
div.parent {
    font-size: 0;
}