.site-nav ul li a {
  background-image: linear-gradient(-90deg, rgb(40.5818181818, 38.0454545455, 45.6545454545) 0%, rgba(40.5818181818, 38.0454545455, 45.6545454545, 0.8) 80%, rgba(40.5818181818, 38.0454545455, 45.6545454545, 0) 100%);
}