.otp_control {
    position: fixed;
    top: 10000px;
}
.wk-otp-loading-mask {
    background: none repeat scroll 0 0 rgba(255, 255, 255, 0.62);
    height: 100%;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 9999;
}
.wk-otp-loader {
    background: url("../images/ajax-loader.gif") repeat scroll 0 0 rgba(0, 0, 0, 0);
    height: 32px;
    left: 50%;
    margin-left: -16px;
    margin-top: -16px;
    position: absolute;
    top: 50%;
    width: 32px;
}
.wk-otp-display-none {
    display: none;
}
.error {
    color: red;
    background-color: yellow;
}
.success {
    color: green;
    font-size: 20px;
    font-weight: 700;
    padding: 5px;
    margin: 5px;
}
.otp_modal_popup {
    width: 500px;
    text-align: center;
    margin: auto;
}
.validate_error {
    color: red;
    background-color: yellow;
}
.user_otp {
    height: 25px;
    margin: 1px;
}
input#user_otp {
    width: 65%;
}

@media screen and (max-width: 450px) {
    .otp_modal_popup {
        width: 400px;
    }
}
@media screen and (max-width: 350px) {
    .otp_modal_popup {
        width: 300px;
    }
    .user_otp {
        margin: 1rem;
    }
}