* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

header {
  position: relative;
  height: 500px;
  overflow: hidden;
}

.slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  animation: slide 10s infinite;
}

.slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes slide {
  0% {
    transform: translateX(0);
  }
  33.33% {
    transform: translateX(-100%);
  }
  66.66% {
    transform: translateX(-200%);
  }
  100% {
    transform: translateX(0);
  }
}

main {
  height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.video {
  position: relative;
  width: 70%;
  height: 0;
  padding-bottom: 56.25%;
}

.video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

footer {
  background-color: #333;
  color: #fff;
  height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
}

footer p {
  font-size: 24px;
}