Browser Unsupported Notice

<div class="nuda-ep2-browser-unsupported">
  <div class="nuda-ep2-browser-unsupported__icon" aria-hidden="true">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor"
         stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
      <rect x="2" y="4" width="20" height="16" rx="2" />
      <path d="M2 8h20" />
      <circle cx="5.5" cy="6" r="0.5" fill="currentColor" stroke="none" />
    </svg>
    <span class="nuda-ep2-browser-unsupported__bang">!</span>
  </div>
  <p class="nuda-ep2-browser-unsupported__title">Browser not supported</p>
  <p class="nuda-ep2-browser-unsupported__sub">Please update your browser, or switch to a modern one, to continue.</p>
  <div class="nuda-ep2-browser-unsupported__row" aria-hidden="true">
    <span class="nuda-ep2-browser-unsupported__dot"></span>
    <span class="nuda-ep2-browser-unsupported__dot"></span>
    <span class="nuda-ep2-browser-unsupported__dot"></span>
    <span class="nuda-ep2-browser-unsupported__dot"></span>
  </div>
  <button class="nuda-ep2-browser-unsupported__btn" type="button">Update browser</button>
</div>

.nuda-ep2-browser-unsupported {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 22px 20px;
  background: #101010;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  width: 100%;
  max-width: 260px;
  text-align: center;
  font-family: ui-sans-serif,system-ui;
}

.nuda-ep2-browser-unsupported__icon {
  position: relative;
  width: 52px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8a8a8a;
  background: #1a1a1a;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  margin-bottom: 6px;
}

.nuda-ep2-browser-unsupported__icon svg {
  width: 28px;
  height: 22px;
}

.nuda-ep2-browser-unsupported__bang {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5a623;
  color: #0a0a0a;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
  border: 2px solid #101010;
  animation: _nuda-ep2browserunsupported-shake 2.6s ease-in-out infinite;
}

.nuda-ep2-browser-unsupported__title {
  margin: 4px 0 0;
  color: #fafafa;
  font-size: 14px;
  font-weight: 700;
}

.nuda-ep2-browser-unsupported__sub {
  margin: 0;
  color: #8a8a8a;
  font-size: 11px;
  line-height: 1.5;
  max-width: 210px;
}

.nuda-ep2-browser-unsupported__row {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.nuda-ep2-browser-unsupported__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.14);
  animation: _nuda-ep2browserunsupported-fade 2.4s ease-in-out infinite;
}

.nuda-ep2-browser-unsupported__dot:nth-child(2) {
  animation-delay: .2s;
}

.nuda-ep2-browser-unsupported__dot:nth-child(3) {
  animation-delay: .4s;
}

.nuda-ep2-browser-unsupported__dot:nth-child(4) {
  animation-delay: .6s;
}

.nuda-ep2-browser-unsupported__btn {
  margin-top: 6px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 10px;
  border: 1px solid rgba(228,255,84,.3);
  background: rgba(228,255,84,.1);
  color: #e4ff54;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s;
}

.nuda-ep2-browser-unsupported__btn:hover {
  background: rgba(228,255,84,.18);
}

.nuda-ep2-browser-unsupported__btn:focus-visible {
  outline: 2px solid #e4ff54;
  outline-offset: 2px;
}

@keyframes _nuda-ep2browserunsupported-shake {
  0%,90%,100% {
    transform: rotate(0);
  }
  92% {
    transform: rotate(-10deg);
  }
  94% {
    transform: rotate(10deg);
  }
  96% {
    transform: rotate(-8deg);
  }
  98% {
    transform: rotate(6deg);
  }
}

@keyframes _nuda-ep2browserunsupported-fade {
  0%,100% {
    opacity: .25;
  }
  50% {
    opacity: .9;
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-ep2-browser-unsupported__bang {
    animation: none;
  }
  .nuda-ep2-browser-unsupported__dot {
    animation: none;
    opacity: .6;
  }
}