.contenedor-botones {
    display: flex;
    justify-content: center;
    align-items: center;
}

.boton {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
}