.numdv {
    direction: ltr;
    unicode-bidi: embed;
}
.navbar-brand {
    float: right;
    height: 50px;
    padding: 15px 10px;
}

.navbar-nav .fa.fa-angle-down {
        margin-right: 5px;
}
@media (min-width: 768px) {
    .navbar-right .dropdown-menu {
        right: 0;
        left: auto;
    }
}

.btn-primary {
    background-color: #267265;
    border-color: #267265;
}

.btn-primary:hover {
    color: #fff;
    background-color: #6bada1;
    border-color: #6bada1;
}

.form-group {
    margin:10px 0
}
@media (min-width: 768px) {
    .form-horizontal .control-label {
        text-align: right;
    }
}


/* Error Format */

.is-invalid {
    border-color: #dc3545; /* Red border for invalid input */
}

.invalid-feedback {
    color: #dc3545; /* Red text for error messages */
    font-size: 0.875em;
    margin-top: 0.25rem;
}

/* Bootstrap  */

.panel-info>.panel-heading {
    color: #fff;
    background-color: #257264;
    border-color: #bce8f1;
}


/* small mobile :320px. */
@media only screen and (max-width: 479px)  {
    .navbar-brand>img {
        width: 200px;
    }

    .main-header-text a {
        margin-top: 30px;
    padding: 15px 10px;
    }

    .main-header .overflow,
    .about-header .overflow {
    height: 300px;
    }
    .insid-header,
    .main-header {
        height: 300px;
    }

    .insid-header-text {
        margin: 150px auto auto;
    }
    footer {
    padding: 50px 0;
    }
    input[type=file] {
        display: block;
        width: 250px;
    }
    .checkbox {
        padding-bottom: 25px;
    }
    label.error {
        bottom: 0px;
    right: 0;
    position: absolute;
    }
}