@media only screen and (max-width: 471px) {
    #login-3g-button {
        margin-top: 10px;
    }
}

@media (min-width: 768px) {
    .pt-sm-35 {
        padding-top: 35px !important;
    }
}

@media (max-width: 768px) {
    .header-container a {
        font-size: 7px;
        padding-left: 3px;
        padding-right: 3px;
        flex: auto;
        width: unset;
        max-width: unset;
        padding-bottom: 0px;
    }

    #top-high-container {
        padding-left: 0px;
        padding-right: 0px;
    }

    .main-footer .logo {
        width: 40px;
    }

    .sub-header {
        font-size: 15px;
    }

    body {
        font-size: 13px;
    }

    #logo-home {
        width: auto;
        height: 35px;
    }

    #logo-vkid {
        width: auto;
        height: 35px;
    }

    #logo-kns {
        width: auto;
        height: 35px;
    }

    #logo-robo {
        width: auto;
        height: 35px;
    }

    #logo-math {
        width: auto;
        height: 35px;
    }

    #logo-xamhai {
        width: auto;
        height: 35px;
    }

    .download-app-icon {
        font-size: 27px;
    }

    .download-app-title {
        font-size: 19px;
    }

    .download-app-title-main {
        font-size: 10px;
    }

    .download-app-icon p {
        font-size: 9px;
    }

    .modal-dialog {
        margin-top: 20px;
        margin-right: 15px;
        margin-left: 15px;
    }
}

@media (min-width: 576px) {
    .mb-sm-6, .my-sm-6 {
        margin-bottom: 4rem !important;
    }

    .pt-sm-1-2rem, .py-sm-1-2rem {
        padding-top: 1.2rem !important;
    }

    .pt-sm-1-1rem, .py-sm-1-1rem {
        padding-top: 1.1rem !important;
    }
}