.openBtn {
    background: #f1f1f1;
    border: none;
    padding: 10px 15px;
    font-size: 20px;
    cursor: pointer;
}

    .openBtn:hover {
        background: #bbb;
    }

.overlay {
    height: 100%;
    width: 100%;
    display: none;
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0, 0.9);
}

.overlay-content {
    position: relative;
    top: 46%;
    width: 80%;
    text-align: center;
    margin-top: 30px;
    margin: auto;
}

.overlay .closebtn {
    position: absolute;
    top: 20px;
    right: 45px;
    font-size: 60px;
    cursor: pointer;
    color: white;
}

    .overlay .closebtn:hover {
        color: #ccc;
    }

.overlay input[type=text] {
    padding: 15px;
    font-size: 17px;
    border: none;
    float: left;
    width: 80%;
    background: white;
}

    .overlay input[type=text]:hover {
        background: #f1f1f1;
    }

.overlay button {
    float: left;
    width: 20%;
    padding: 15px;
    background: #003783;
    font-size: 17px;
    border: none;
    cursor: pointer;
}

    .overlay button:hover {
        background: #003783;
    }
#cover-spin {
    position: fixed;
    width: 100%;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: rgba(255,255,255,0.7);
    z-index: 9999;
    display: block;
}