/* 横並び */
.navi ul {
  display: table;
  table-layout: fixed;
}

.navi li {
  display: table-cell;
}

/* デザイン */
.navi {
    background-color: #999;
}

.navi ul {
  display: table;
  table-layout: fixed;
  width: 80%;
  margin: 0 auto;
}

.navi li {
  border-left: 1px solid #000;
}

.navi li:last-child {
  border-right: 1px solid #000;
}

.navi a {
  color: #fff;
  text-align: center;
  text-decoration: none;
  display: block;
  background-color: #777;
  padding: 20px 0;
}

.navi a:hover {
  background-color: #555;
}