JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
        <div class="date">today</div>
</div>

CSS

.container {
      position:relative;
    width: 100px;
    height: 180px;
    border: solid 1px black;
}
.date {
        bottom:10px;
        position:absolute;
        right:10px;
    }