Button not working

button tag is not responding ,
It can be found on console.
Color and other properties are working fine
but still it doesn’t show cursor:pointer property
and clicking it won’t work.

`<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Background slider</title>
  <script src="https://kit.fontawesome.com/6036f5d002.js" crossorigin="anonymous"></script>
  <link href="styles.css" rel="stylesheet" >  
</head>
<body>
  <div class="container">
    <!-- Start of image -->
    <div class="slider" style="background-image: url(../../../images/background-park-wonder-famous-countryside-waterscape.jpg);">

    </div>
    <!-- End of image -->
    <!-- Start of image -->
    <div class="slider" style="background-image: url(../../../images/4-47096_cat-wallpaper-background-data-src-free-download-cat.jpg);">

    </div>
    <!-- End of image -->
    <!-- Start of image -->
    <div class="slider" style="background-image: url(../../../images/beautiful-autumn-leaves-autumn-red-background-sunny-daylight-horizontal.jpg);">

    </div>
    <!-- End of image -->
    <!-- Start of image -->
    <div class="slider" style="background-image: url(../../../images/landscape-tropical-green-forest.jpg);">

    </div>
    <!-- End of image -->
    <!-- Start of image -->
    <div class="slider" style="background-image: url(../../../images/beautiful-shot-small-lake-with-wooden-rowboat-focus-breathtaking-clouds-sky.jpg);">

    </div>
    <!-- End of image -->
    **<button class="arrow left" id="left"><i class="fa-solid fa-chevron-left"></i></button>**
**    <button class="arrow right" id="right"><i class="fa-solid fa-chevron-right"></i></button>**
  </div>
  <script src="script.js"></script>
</body>
</html>`
* {
  box-sizing: border-box;
}

body {
  height: 100vh;
  width: 100vw;
  margin: 0;
  background-position:center center;
  background-size: cover;
}

.container {
  height: 100vh;
  width: 100vw;
  position: relative;
  background-color: rgba(0, 0, 0 , 0.5);
  z-index: -1;
}

.slider {
  position: absolute;
  top: 15vh;
  left: 15vw;
  bottom: 15vh;
  right: 15vw;
  background-position:center center;
  background-size: cover;
  display: none;
}

.slider.active {
  display: block;
}

.arrow { 
  position: absolute;
  top: 50vh;
  background-color: transparent;
  font-size: 25px;
  border: 2px solid orangered;
  color: white;
  padding: 10px;
  cursor: pointer;
}

.arrow:hover {
  background-color: orangered;
}

#left {
  left: calc(15vw - 40px);
}
#right{
  right: calc(15vw - 40px);
}