.up{
    width: 100%;
    height: 500px;
    border-radius: 2px solid black;
    border: 12px;
    font-size: 25px;
    text-align: center;
    justify-content: center;
    margin-top: 200px;

}
.menu{
    display: flex;
    justify-content: center;
    font-size: 45px;
}
.menu a{
    text-decoration: none;
    color: goldenrod;
}
span{
    color: goldenrod;
}

@media (max-width:620px){
    .menu{
        font-size: 28px;
    }
}