.sidenav {
    height: 100%; 
    width: 20%; 
    position: fixed; /* Fixed Sidebar (stay in place on scroll) */
    z-index: 1; 
    top: 0;
    left: 0;
    background-color: rgb(17, 17, 17);
    overflow-x: hidden;
    padding-top: 20px;
}
  
.sidenav a {
    padding: 60px 60px 6px 16px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
}
  
.sidenav a:hover {
    color: #f1f1f1;
}

.sidenav ul li {
    list-style: none;
}
.sidenav li img {
    margin-right: 15%;
    padding-top: 10%;
    padding-right: 2%;
}

.sidenav h3 {
    color: rgb(192, 190, 190);
    margin-right: 15%;
    margin-bottom: -10px;
}

.sidenav p {
    color: rgb(192, 190, 190);
    margin-right: 10%;
}

/* .main {
    margin-left: 160px;
    padding: 0px 10px;
} */

.sidenav a:after{
    content: '';
    /* position: absolute; */
    width: 0; height: 3px;
    display: block;
    margin-top: 5px;
    /* right: 0; */
    background: rgb(255, 255, 255);
    transition: width .2s ease;
    -webkit-transition: width .2s ease;
}
   
.sidenav a:hover:after{
    width: 50%;
    /* left: 0; */
    padding-left: -50%;
    background: #fff;
    margin-left: 25%;
}

@media only screen 
  and (min-device-width: 768px) 
  and (max-device-width: 1024px) 
  and (-webkit-min-device-pixel-ratio: 1) {
    .sidenav a {
        padding: 30px 60px 10px 16px;
        font-size: 20px;
        margin-left: -7%;
    }

    .sidenav li img {
        align-items: center;
        margin-left: -12px;
        width: 110px;
        height: 110px;
    }

    .sidenav h3 {
        margin-right: 29%;
    }

    .sidenav p {
        margin-left: -26px;
    }
}

@media only screen 
  and (min-device-width: 320px) 
  and (max-device-width: 480px)
  and (-webkit-min-device-pixel-ratio: 2) {
    .sidenav a {
        padding: 30px 60px 10px 16px;
        font-size: 12px;
        margin-left: -35px;
        margin-top: 10px;
    }

    .sidenav img {
        height: 60px;
        width: 60px;
        margin-left: -30px;
    }

    .sidenav h3 {
        /* margin-right: 300px; */
        font-size: 14px;
        margin-left: -30px;
    }

    .sidenav p {
        margin-left: -30px;
        margin-top: 70%;
        font-size: 12px;
    }
}

@media only screen 
  and (min-device-width: 320px) 
  and (max-device-width: 376px)
  and (-webkit-min-device-pixel-ratio: 2) {
    .sidenav a {
        padding: 30px 60px 10px 16px;
        font-size: 12px;
        margin-left: -49px;
        margin-top: 10px;
    }

    .sidenav img {
        height: 47px;
        width: 47px;
        margin-left: -30px;
    }

    .sidenav h3 {
        font-size: 11px;
        margin-left: -34px;
        text-align: left;
    }

    .sidenav p {
        margin-left: -34px;
        margin-top: 70%;
        font-size: 8px;
        text-align: left;
    }
}