navbar.css

.navbar {
    height: 100px;
    background-color: #f06bbd;
    z-index: 99;
    position: fixed;
    width: 100%;
}

.navbar a {
    font-family: "Simpson";
    _font-size: 2em;
    font-size: 3vw;
    cursor: pointer;
    color: white;
    padding: 0 5%;
    text-shadow: #ecb243 1px 0 10px;
}

.menu_burger {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-evenly;
    height: 100%;
}

.button_menu {
    display: none;
}

/*Mobile Version */
@media screen and (max-width: 700px) {

    .navbar {
        margin-bottom: 10%;

    }

    .menu_burger {
        display: none;
    }

    .button_menu {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 100%;
    }

    .button_menu img {
        width: 80px;
    }

    .menu_burger:target {
        display: flex;
        flex-direction: column;
        position: fixed;
        width: 100vw;
        height: 100vh;
        font-size: 3em;
        top: 0;
        left: 0;
        z-index: 100;
        background-color: #f06bbc;
    }

    .navbar a {

        font-size: 1em;
    }

}