.flybtn_button {
    position: fixed;
    right: 20px;
    display: inline-flex;
    height: 64px;
    padding: 0 12px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 0.5px solid #FFF;
    background: #000;
    box-shadow: 0 4px 4px rgba(0, 0, 0, 0.40);
    color: #FFF;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 3.5px;
    text-transform: uppercase;
    text-decoration: none;
    z-index: 9999;
    transition: all 0.2s ease;
}

.flybtn_button:hover,
.flybtn_button:focus {
    border: 0.5px solid #FFF;
    background: #C59D5F;
    color: #FFF;
}