how to set background image in button in html code example

Example 1: how to set background image in html

<!-- Add image by a HTML element: -->
<div style="background-image: url('img.jpg');">

<!-- Add image by a <style> element: -->
<style>
div {
  background-image: url('img.jpg');
}
</style>

<!-- Add to the entire body: -->
<style>
body {
  background-image: url('img.jpg');
}
</style>

Example 2: how to add a background image in html

<!-- HTML -->
<div id="imageDiv"></div>

<!-- CSS -->
<style>
  #imageDiv {
	background-image: url('someimage.png');
  }
</style>