.hamburger-menu {
    display: none;
}


@media only screen and (max-width: 768px) {


    .hamburger-menu {
        position: fixed;
        top: 20px;
        right: 20px;
        z-index: 999;
        display: inline-block;
        width: 30px;
        height: 22px;
        cursor: pointer;
    }

    .hamburger-menu .menu span {
        display: block;
        position: absolute;
        height: 3px;
        width: 100%;
        background: #000;
        border-radius: 3px;
        opacity: 1;
        left: 0;
        transform: rotate(0deg);
        transition: all 0.25s ease-out;
    }

    .hamburger-menu .menu span:nth-child(1) {
        top: 0;
    }

    .hamburger-menu .menu span:nth-child(2),
    .hamburger-menu .menu span:nth-child(3) {
        top: 9px;
    }

    .hamburger-menu .menu span:nth-child(4) {
        top: 18px;
    }

    .hamburger-menu .menu.open span:nth-child(1) {
        top: 9px;
        width: 0%;
        left: 50%;
    }

    .hamburger-menu .menu.open span:nth-child(2) {
        transform: rotate(45deg);
    }

    .hamburger-menu .menu.open span:nth-child(3) {
        transform: rotate(-45deg);
    }

    .hamburger-menu .menu.open span:nth-child(4) {
        top: 9px;
        width: 0%;
        left: 50%;
    }

    .hamburger-menu .menu-items {
        position: fixed;
        top: 0;
        right: 0;
        width: 75%;
        height: 100%;
        background: #282a65;
        transform: translateX(100%);
        transition: all 0.25s ease-out;
        z-index: 998;
        margin-top: 15vh;
    }

    .hamburger-menu .menu-items.open {
        transform: translateX(0);
        border-radius: 10px;
        width: 66vw;
    }

    .hamburger-menu .menu-link-wrap {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 70%;
        color: #ffffff;

    }

    .span-for-menu {
        font-size: 18px;
        letter-spacing: -0.1px;
        text-align: left;
        color: white;
    }

    .hamburger-menu .menu-link {
        margin-bottom: 20px;
        font-size: 20px;
        font-weight: bold;
        text-decoration: none;
        color: #ffffff;
    }

    .close {
        position: absolute;
        top: 1vh;
        right: 4vw;
        font-size: 5vh;
        color: white;
        opacity: 1;
        cursor: pointer;
    }

    .left-menu {
        display: none;
    }
    #leftPanel {
        display:none;
    }
    #tabPage{
        margin-left:-88vw;
        margin-top:10vh;
        height: 90vh;
        overflow-y: auto;
    }

    .greet {
        display: none;
    }
}