JSFiddle - React, Tailwind, and code Playground

HTML

<input type="submit" value="Заказать">

CSS

input[type="submit"] {
    border-radius: 30px;
    height: 43px;
    font-size: 18px;
    line-height: 43px;
    width: 272px;
    color: #FFF;
    text-transform: uppercase;
    border: none;
    cursor:poiner;
    background: #00CFE6;
}
input[type="submit"]:active {
    background: #008D9D;
}