JSFiddle - React, Tailwind, and code Playground

HTML

<div> <a class="botao" href="#">Contrate agora</a>

</div>

CSS

.botao {
    margin-top: 40px;
    border-top: 1px solid #000000;
    background: #000000;
    background: -webkit-gradient(linear, left top, left bottom, from(#777), to(#000000));
    background: -webkit-linear-gradient(top, #777, #000000);
    background: -moz-linear-gradient(top, #777, #000000);
    background: -ms-linear-gradient(top, #777, #000000);
    background: -o-linear-gradient(top, #777, #000000);
    padding: 13px 26px;
    -webkit-border-radius: 15px;
    -moz-border-radius: 15px;
    border-radius: 15px;
    -webkit-box-shadow: rgba(0, 0, 0, 1) 0 1px 0;
    -moz-box-shadow: rgba(0, 0, 0, 1) 0 1px 0;
    box-shadow: rgba(0, 0, 0, 1) 0 1px 0;
    text-shadow: rgba(0, 0, 0, .4) 0 1px 0;
    color: white;
    font-size: 19px;
    font-family:'Lucida Grande', Helvetica, Arial, Sans-Serif;
    text-decoration: none;
    vertical-align: middle;
}
.botao:hover {
    border-top-color: #28597a;
    background: #0422ba;
    background: -webkit-gradient(linear, left top, left bottom, from(#27274f), to(#0422ba));
    background: -webkit-linear-gradient(top, #27274f, #0422ba);
    background: -moz-linear-gradient(top, #27274f, #0422ba);
    background: -ms-linear-gradient(top, #27274f, #0422ba);
    background: -o-linear-gradient(top, #27274f, #0422ba);
    color: #ccc;
}
div{
    padding:20px;
}