body
{
    background-color: #fff;
}
a {
  color: #000;
  text-decoration: none;
}
button
{
    font-family: 'Roboto', sans-serif;
    font-size: 2rem;
    font-weight: 500;

    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;

    width: 50%;
    height: 100px;
    margin: auto;

    cursor: pointer;
    transition: all .3s ease 0s;
    letter-spacing: 2.5px;
    text-transform: uppercase;

    color: #000;
    border: 0;
    outline: none;
    background-color: #fff;
}
button:hover {
  text-decoration: underline;
  color: blue;
}