<div class="container">
  <button class="icon">
    <i class="fas fa-wifi"></i>
  </button>

  <button class="icon">
    <i class="fab fa-bluetooth-b"></i>
  </button>

  <button class="icon">
    <i class="fas fa-volume-up"></i>
  </button>

  <button class="icon">
    <i class="fas fa-plane"></i>
  </button>

  <button class="icon">
    <i class="fas fa-map-marker-alt"></i>
  </button>

  <button class="icon">
    <i class="fas fa-gamepad"></i>
  </button>
</div>

:root {
  --background-color: #000;
  --icon-bg: #212121;
  --icon-fg: gray;
}

* {
  margin: 0;
  padding: 0;
}

body {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--background-color);
}
.container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.icon {
  all: unset;
  font-size: 1.4rem;
  width: 40px;
  height: 40px;
  padding: 0.5rem;
  border-radius: 999px;

  display: grid;
  place-items: center;

  background: var(--icon-bg);
  color: var(--icon-fg);
  border: 2px solid transparent;

  transition: background 200ms ease-in-out;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent; 
}

@media screen and (min-width: 500px) {
  .icon:hover {
    border: 2px solid white;
    box-shadow: 0 0 20px -5px white;
  }
}

.active-icon {
  --icon-bg: white;
  --icon-fg: black;
}

const icons = document.querySelectorAll(".icon");

icons.forEach((icon) =>
  icon.addEventListener("click", () => {
    icon.classList.toggle("active-icon");
  })
);