.site-nav ul li a {
  background-image: linear-gradient(-90deg, rgb(53.897260274, 107.7945205479, 139.602739726) 0%, rgba(53.897260274, 107.7945205479, 139.602739726, 0.8) 80%, rgba(53.897260274, 107.7945205479, 139.602739726, 0) 100%);
}