JSFiddle - React, Tailwind, and code Playground

HTML

<div id='innerPageWrapper'>
    <label> label</label>
    <p>100% height div</p>
</div>

CSS

#innerPageWrapper {
    width:120px;
    height:200px;
    background:red;
}

#innerPageWrapper p{
    width: 100px;
    height: 100%;
    margin: auto;
    background: yellow;
}