.navbar .navbar-nav {
  /*margin-left:150px;*/
  /*float: left;*/
  /*position:relative;
  left:10%;*/
  float: none;
  font-size: 20px;
}

ul.navbar-nav > li {
    float:none;
    display:inline-block;
    zoom:1;
}

ul.nav.navbar-nav {
    text-align:center;
}