@media (min-width: 768px) {
nav ul {
    display: block;
    position: fixed;
    background: white;
    text-align: center;
    top: 50px;
    left: 0;
    border-right: 0.3px solid black;
    height: 100vh;
    width: 70px;
    color: black;
    gap: 20px;
    
}

    
.main-desktop {
    margin-left: 80px;
}

nav li a{
     display: flex;
     font-size: 10px;
     height: 50px;
     border-bottom: 0.3px solid grey;
     justify-content: center;
     align-items: center;
     cursor: pointer;
}

nav span {
     font-size: 16px;
}

}