::-webkit-input-placeholder { /* WebKit, Blink, Edge */
        color: #A9A9A9;
    }

    :-moz-placeholder { /* Mozilla Firefox 4 to 18 */
        color: #A9A9A9;
        opacity: 1;
    }

    ::-moz-placeholder { /* Mozilla Firefox 19+ */
        color: #A9A9A9;
        opacity: 1;
    }

    :-ms-input-placeholder { /* Internet Explorer 10-11 */
        color: #A9A9A9;
    }


.user-agent-mask {
    position: absolute;
    width: 100%
}

.user-agent-mask {
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    height: 100%;
    z-index: 4;
    transition: all 1s ease 0;
    background-color: rgba(0, 0, 0, .6);
    background: linear-gradient(180deg, rgba(0, 0, 0, .62) 0, rgba(0, 0, 0, .6));
    display: none
}

.user-agent-mask .user-agent-container {
    position: absolute;
    top: 20%;
    width: 600px;
    padding: 20px;
    left: 50%;
    margin-left: -300px;
    display: block;
    color: #0187ef;
    text-align: center;
    border-radius: 6px;
    background-color: #f5f5f5;
    box-shadow: 0 0 4px rgba(0, 0, 0, .4)
}

.user-agent-mask .close {
    font-size: 24px;
    color: #cacaca;
    display: block;
    position: absolute;
    top: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    background-image: url('../../themes/img/closeBtn.png');
    background-repeat: no-repeat;
    background-position: 50%
}

.user-agent-mask .close:hover {
    background-image: url('../../themes/img/closeBtn-hover.png')
}

.user-agent-mask .img {
    background-image: url('../../themes/img/monitor.png');
    width: 100%;
    height: 150px;
    margin: 20px auto;
    background-position: 50%;
    background-repeat: no-repeat;
    background-size: contain
}

.user-agent-mask .title {
    font-size: 24px;
    color: #58a5eb;
    margin: 10px auto;
    text-align: center
}

.user-agent-mask .text {
    font-size: 14px;
    color: #999;
    margin-top: 10px
}

.user-agent-mask .a-btn {
    margin: 10px auto;
    padding: 8px 30px;
    color: #fff;
    background-color: #58a4f2;
    font-size: 24px;
    border: none;
    cursor: pointer;
    text-align: center;
    display: inline-block;
    zoom: 1;
    *display: inline;
    border-radius: 5px;
    transition: all .3s ease
}

.user-agent-mask .a-btn:hover {
    background-color: #298aee
}