.slider {
  max-width: 500px;
  margin: 0 auto;
}

.slider__input {
  width: 500px;
}

.slider__image {
  display: block;
  margin: 20px auto;
  max-width: 100%;
}




body {
  margin: 0;
  background: #f5f5f5;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100vh;
}

.container {
  width: 600px;
  height: 400px;
  background: #ddd;
  border: 2px solid #333;
  position: relative;
  overflow: hidden;
}

#box {
  width: 50px;
  height: 50px;
  background-color: red;
  position: absolute;
  top: 0;
  left: 0;
  transition: transform 0.2s ease;
}