.device-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    color: white;
    z-index: 1000;
    padding: 20px;
    text-align: center;
}

    .device-modal .modal-main {
        margin: 50px auto;
        width: 60%;
        padding: 15px;
        border-radius: 15px;
        background-color: rgba(0, 0, 0, 0.8);
        border: 1px solid #FFF;
    }

        .device-modal .modal-main h2 {
            margin-bottom: 15px;
            margin-right: 20px;
        }