JSFiddle - React, Tailwind, and code Playground

HTML

<button class="fixed-button"> fixed-button </button>

CSS

.fixed-button {
width: 125px;
background: #FFFFFF;
border-style: solid;
border-width: 1px;
border-radius: 3px;
padding: 5px;
margin-left: 0px;
position: fixed;
z-index: 999;
top: 70px;
}