이미지나 비디오 위에 아이콘을 배치하고 클릭 시 다운로드를 트리거하는 방법은 무엇입니까?

<code class="css">.container {
  position: relative;
}

.container img {
  display: block;
}

.container .fa-download {
  position: absolute;
  bottom: 0;
  left: 0;
}</code>

<code class="html"><link href="https://use.fontawesome.com/releases/v5.7.1/css/all.css" rel="stylesheet" />

<div class="container">
  <img src="https://placekitten.com/300/300" />
  <a href="dog.png" download="new-filename"><i class="fas fa-download"></i></a>
</div></code>

<code class="html"><link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet" /></code>

<code class="html"><div class="container">
  <img src="https://placekitten.com/300/300" />
  <a href="dog.png" download="new-filename"><i class="fa fa-download"></i></a>
</div></code>