JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="box"></div>
    <div class="box">SUPERMAN</div>
    <div class="box">BUTTON</div>
</div>

CSS

html, body { height: 100%; margin: 0; }

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: yellow;
    height: 100%;
    box-sizing: border-box;
    
    justify-content: space-between;
}

.container > div:nth-child(1) { visibility: hidden; }
/* .container > div:nth-child(2) { margin-top: auto; } */
/* .container > div:nth-child(3) { margin-top: auto;  } */


/* non-essential decorative styles */
.box {
    height: 50px;
    width: 150px;
    background-color: lightgreen;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    box-sizing: border-box;
}