JSFiddle - React, Tailwind, and code Playground

by mstefanko

HTML

<div id="parent">
    <div id="warning"></div>
    <div id="warning-placeholder"></div>
    <div id="banner">I AM BANNER</div>
</div>

CSS

#warning {
    background: #000000;
    width: 100%;
    height: 20px;
}

#parent #warning {
    background: #C8C8C8;
    position:absolute;
}

#parent #warning-placeholder {
    width: 100%;
    height: 20px;
}