* {
  box-sizing: border-box;
  transition: all 0.3s ease;
}

body {
  background: url("https://wallpaperscraft.com/image/decline_road_country_signature_evening_twilight_wood_grass_vegetation_summer_field_54050_1680x1050.jpg");
  max-width: 960px;
  padding: 0 20px;
  margin: 0 auto;
  height: auto;
  font-family: sans-serif;
  color: azure;
  font-size:20px;
}

#main-ul {
  display: flex;
  justify-content: center;
  margin: 30px auto;
  max-width: 760px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.2) 25%, rgba(255, 255, 255, 0.2) 75%, rgba(255, 255, 255, 0) 100%);
}

#main-ul li {
  padding: 20px;
}

#main-ul a {
  text-decoration: none;
	color: inherit;
}

#main-ul li:hover {
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1), inset 0 0 1px rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
}

/*media queries*/
@media screen and (min-width: 0px) {
  .toggle-nav {display: block;}
  #main-ul {display: none;}
}

@media screen and (min-width: 700px) {
  .toggle-nav {display: none;}
  #main-ul {display: flex;}
}