.header{
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    height: 80px;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    z-index: 200;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}
.logo{
    height: 100%;
}
.burgerButton{
    display: block;
    border: none;
    background: none;
    color: #000;
    font-size: 2em;
}
.def_nav{
    position: absolute;
    z-index: 200;
    top: 80px;
    background-color: #ffffff;
    right: 0;
    overflow: hidden;
    width: 0;
    transition: width 0.5s;
    height: 450px;
    padding-top: 50px;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.05);
}
.def_nav ul{
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
.def_nav ul li{
    list-style: none;
    border-bottom: 1px solid rgb(230, 230, 230);
    width: 100%;
    box-sizing: border-box;
    height: 45px;
    width: 100%;
    margin: 0;
    padding: 0;
    padding-left: 20px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.def_nav ul li a {
    color: var(--fontColor);
    text-decoration: none;
    font-size: 0.9em;
    font-weight: 600;
    overflow: hidden; 
    white-space: nowrap;
}
@media only screen and (min-width: 800px) {
    .header{
        height: 100px;
    }
    .burgerButton{
        display: none;
    }
    .def_nav{
        position: relative;
        top: 0;
        width: fit-content !important; 
        height: auto;
        transition: width 0.5s;
        height: 50x;
        padding: 0;
        box-shadow:none;
    }
    .def_nav ul{
        flex-direction: row;
    }
    .def_nav ul li{
        border:none;
        width: auto;
        height: 35px;
        margin: 0;
        padding: 0 10px;
        display: flex;
        align-items: center;
        justify-content: flex-start;
    }
}