button with image html
<style>
#wrapper{
width:150px;
height:150px;
position:relative;
}
#btn{
width:100%;
height:100%;
position:absolute;
background:none;
padding:15px
}
#img{
width:100%;
height:100%;
}
</style>
<div id='wrapper'>
<button id='btn'>Click me</button>
<img id='img' src="https://images.unsplash.com/photo-1591160690555-5debfba289f0?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1000&q=80" alt="">
</div>