<div class="container">
<h1>How to train a dragon</h1>
</div>
.container{
width:700px;
height:400px;
position:relative;
display:block;
padding:1rem;
}
.container::before{
content:"";
background-image: url('https://hdwallpaperim.com/wp-content/uploads/2017/08/31/148167-water-bridge-dock-748x468.jpg');
opacity:0.5;
position:absolute;
top:0;
bottom:0;
right:0;
left:0;
width:auto;
height:auto;
z-index:-3;
}
.container h1{
text-align:center;
/* color: white; */
font-size:49px;
}
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