Add icon unmute sound video video_tag

<script>
      let video = document.querySelector("#video");
      if(video) {
         video.parentNode.insertAdjacentHTML('beforeend', '<div class="custom-btn-muted">Unmuted</div>');
         video.parentNode.style.position = "relative"
         let btnCustomMuted = document.querySelector(".custom-btn-muted");
         btnCustomMuted.addEventListener("click", () => {
           if(video.muted) {
             btnCustomMuted.textContent = "Muted";
           }
           else {
             btnCustomMuted.textContent = "Unmuted";
           }
            video.muted = !video.muted;
         })
      }
    </script>

/**css**/
.custom-btn-muted {
    position: absolute;
    bottom: 15px;
    right: 20px;
    color: white;
    text-transform: uppercase;
    cursor: pointer;
}