*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  font-family: Helvetica Neue;
}

html, body {
  height: 100%;
}

canvas {
  display: block;
}

.notification {
  display: none;
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: #fff;
  color: #444;
  padding: 30px 60px;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  animation: slide-in 250ms ease-in-out;
  z-index: 999;
  box-shadow: rgba(0, 0, 0, 0.16) 0px 1px 4px;
  font-size: 16px;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.notification a.text {
  text-decoration: none;
}

.notification .close {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 20px;
  line-height: 12px;
  cursor: pointer;
}

.notification .text {
  padding: 4px 0;
}

@keyframes slide-in {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0%);
  }
}

kbd {
  background-color: #eee;
  border-radius: 3px;
  border: 1px solid #b4b4b4;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .2), 0 2px 0 0 rgba(255, 255, 255, .7) inset;
  color: #333;
  display: inline-block;
  font-family: monospace;
  font-size: .85em;
  font-weight: 700;
  line-height: 1;
  padding: 2px 4px;
  white-space: nowrap;
}