.site-nav ul li a {
  background-image: linear-gradient(-90deg, rgb(83.64453125, 29.05546875, 29.9359375) 0%, rgba(83.64453125, 29.05546875, 29.9359375, 0.8) 80%, rgba(83.64453125, 29.05546875, 29.9359375, 0) 100%);
}