.main-banner {
  text-align: center;
}

.wp-header .wp-panel .wp_nav {
  width: 1200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.wp-header .wp-panel .wp_nav .nav-item {
  flex: 1;
font-size: 18px;
}

.wp-header .wp-panel .wp_nav .nav-item:hover {
   backgroud: #ccc;
}

.wp-header .wp-panel .wp_nav .nav-item a:hover {
   backgroud: #ccc;
}