* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  min-height: 100vh;
  overflow: hidden;
}
canvas {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  cursor: grab;
  &:active {
    cursor: grabbing;
  }
}
nav {
  position: absolute;
  right: 0;
  left: 0;
  bottom: 40px;
  width: 100%;
  display: flex;
  justify-content: center;
}
button {
  appearance: none;
  border: none;
  background: none;
  cursor: pointer;
}
.prev,
.next {
  position: absolute;
  top: 50%;
  padding: 10px;
  transform: translateY(-50%);
}
.prev {
  left: 10px;
}
.next {
  right: 10px;
}
.indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  text-indent: -9999px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.2;
  &:hover {
    opacity: 0.5;
  }
  &::after {
    content: '';
    display: block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #333;
    pointer-events: none;
  }
}