*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.container{
  background: url(bg.jpg) no-repeat center;
  height: 100vh;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brightness-box{
  width: 400px;
  height: 60px;
  background: #f9f9f9;
  border-radius: 8px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brightness-box i{
  margin: 0 10px;
}
#range{
  width: 100%;
  /* -webkit-appearance: none; */
  background: #0a85ff;
  height: 3px;
  outline: none;
}
#range::-webkit-slider-thumb{
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: #333;
  border-radius: 50%;
  cursor: pointer;
}