JSFiddle - React, Tailwind, and code Playground

HTML

<button>Click me</button>

CSS

button {
    padding: 1em 2em;
    background-color: #4072B4;
    color: white;
    border: none;
    border-radius: 3px;
    box-shadow: inset 0 0 2px rgba(0, 0, 0, .8);
}
button:active {
    box-shadow: inset 0 0 6px rgba(0, 0, 0, .9);
}
button:hover {
    background-color: #4F80C0;
}