.menu
{
    margin: 212px auto;
    display: flex;
    flex-direction: column;
    margin-left: 696px;
}
a
{
    height: 30px;
    width: 100px;
    border: 3px solid black;
    margin: 20px;
    border-radius: 10px ;
    text-decoration: none;
    text-align: center;
}