a.button.button-primary {
    background-color: salmon; /* Just for demonstration-purposes. */
}

div#flexiwoo-modal {
    background-color: rgba(0, 0, 0, 0.5);
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
}

div.flexiwoo-modal-content {
    background-color: white;
    transform: translate(-50%, -50%);
    position: absolute;
    top: 50%;
    left: 50%;
    padding: 20px;
    border-radius: 5px;
    width: 80%;
    max-width: 640px;
    height: 80%;
    max-height: 320px;
    overflow: auto;
    z-index: 10001;
    text-align: center;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
    padding-top: 60px;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}