.content-mask-container {
    background-color: rgba(0, 0, 0, 0.6);
    border: 1px solid #fff;
    position: relative;
    min-height: 200px;
    margin-bottom: 1rem;
}

.content-mask {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    padding: 2rem;
    border: 2px solid #000;
    font-size: 0.8rem;
    text-align: center;
    color: #fff;
}

.btn-mask {
    cursor: pointer;
    display: block;
    margin: 1rem auto;
    white-space: normal;
    font-size: 0.8rem;
    color: #000;
    font-family: "Open sans";
    padding: 0.7em 1em;
}

.btn-mask:hover {
    background-color: #f5f5f5;
}