* {
  box-sizing: border-box;
}

button {
  cursor: pointer;
  padding: 8px 16px;
  margin: 10px 5px;
}

main {
  display: flex;
  position: relative;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
}

.controls {
  padding: 10px;  
  display: flex;
  align-items: center;
  justify-content: center;
  height: 70px;
  min-height: 70px;
}

.slides-container {
  position: relative;
  overflow: hidden;  
  display: flex;
  flex: 1;
}

.slide {
  position: absolute;
  font-size: 90px;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
}

.slides-inner {
  position: relative;
  height: 100%;
  width: 100%;  
  overflow: visible;
}