.header{
    position: absolute;
    width: 100%;
    padding: 40px 0;
}
.header nav{
    z-index: 999;
    padding:15px 20px;
    border-radius: 10px;
}

.header nav .nav-link{
    font-size: 18px;
    color: var(--black-color);
    cursor: pointer;
}
.header nav .nav-link:hover{
    color:var(--primary-color);
}