.sidenav {
    height: 100%;
    width: 24vh;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: #10679E;
    /*background-image: linear-gradient(#056B5B,#09AB92,#089e87,#067866);*/
    background-image: linear-gradient(#0A466B,#1270AB,#10679E,#0C4F78);
    overflow-x: hidden;
}

.sidenav a {
    padding: 0.6vh 0.8vh 0.6vh 1.6vh;
    text-decoration: none;
    font-size: 18px;
    color: #F0F5F3;
    display: block;
}

    .sidenav a:hover {
        background-color: #4686AE;
    }

.brand {
    /*background-color: #067866;*/    
    line-height: 5vh;
    height: 15vh;
    display: block;
    text-align: center;
    font-size: 14px;
    padding: 1vh 0.6vh 0.6vh 1vh;
}

    .brand a {
        /*background-color: #067866;*/
    }

        .brand a:hover {
            background-color: inherit;
        }
.ul,
.li {
    list-style: none;
    padding: 0px;
    margin: 0px;
    line-height: 3.5vh;
    cursor: pointer;
}  

img {
    width: 20vh;
}
.main {
    margin-left: 24vh; /* Same as the width of the sidenav */
    font-size: 16px; /* Increased text to enable scrolling */
    padding: 0px 1.7vh;    
}