html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

.button {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    color: #ffffff;
    background-color: #ec9e03;
    border: 2px solid #ec9e03;
    border-radius: 5px;
    box-shadow: 1px 1px 3px 3px rgba(0, 0, 0, 0.2);
    font-weight: bold;
    display: block;
    padding: 1em;
    text-decoration: none;
    transition: all 0.1s ease;
    will-change: background-color, color;
}

.button-back {
    bottom: 2rem;
    padding: 1em 3rem;
}

.button:hover {
    color: #ec9e03;
    background-color: #ffffff;
}