#menu a{
  background-color:green;
  padding-top: 10px;
  padding-bottom: 10px;
  padding-left: 20px;
  padding-right:20px;
  color: white;
  text-decoration: none;
}
#menu a.primary_button{
  background-color: rgb(123, 1, 145);
}
#menu a:hover{
  background-color:blue;
  border:0px solid red;
  color: white;
  text-decoration: underline;
}
#menu{
    border:2px solid red;
    display: inline-block;
    padding:20px;
    font-size:18pt;
    width: 860px;
    text-align: center;
    background: yellow;
}