@media (max-width: 776px) {
    .navbar-toggler {
        outline: none !important;
    }
    .navbar-toggler .icon-bar {
        position: relative;
        transition: all 500ms ease-in-out;
        background-color: #fff;
        width: 25px;
        height: 2px;
        display: block;
        margin-bottom: 5px;
        margin-top: 5px;
    }
    .navbar-toggler[aria-expanded="true"] .icon-bar:nth-of-type(1) {
        top: 6px;
        transform: rotate(45deg);
    }

    .navbar-toggler[aria-expanded="true"] .icon-bar:nth-of-type(2) {
        background-color: transparent;
    }

    .navbar-toggler[aria-expanded="true"] .icon-bar:nth-of-type(3) {
        top: -8px;
        transform: rotate(-45deg);
    }
}