.site-nav ul li a {
  background-image: linear-gradient(-90deg, rgb(29.1489361702, 30.6063829787, 39.3510638298) 0%, rgba(29.1489361702, 30.6063829787, 39.3510638298, 0.8) 80%, rgba(29.1489361702, 30.6063829787, 39.3510638298, 0) 100%);
}