html, body {
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.banner-container {
  width: 970px;
  height: 250px;
  background: url('https://casinoslotsspelen.nl/wp-content/uploads/2022/01/777banner.png') center center / cover no-repeat;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  cursor: pointer;
}

.roulette-container {
  position: relative;
  width: 220px;
  height: 220px;
  margin-left: 30px;
}

.roulette-wheel {
  width: 100%;
  height: 100%;
  animation: spin-back-forth 10s cubic-bezier(0.445, 0.05, 0.55, 0.95) infinite alternate;
}

@keyframes spin-back-forth {
  0% { transform: rotate(0deg); }
  45% { transform: rotate(360deg); }
  50% { transform: rotate(355deg); }
  95% { transform: rotate(-5deg); }
  100% { transform: rotate(0deg); }
}