.navbutton{
    text-align: center;
    background-color: #538234;
    border: none;
    color: #fff;
    text-align: center;
    padding: 6px 6px;
    border-radius: 6px;
    font-family: arial, verdana, helvetica;
    margin: 6px 6px;
  }

 .navbutton.hover{
    background-color: #314e1d;
 }