.parallaxed-image {
height:30vh; /* Adjust this as desired */
background-image:url(butterfly-nithin-poster.jpg);
background-repeat:no-repeat;
background-attachment:fixed;
background-position:center;
background-size:cover;
}
<div class="parallaxed-image">
</div>
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Still image taken from video by Nithin PA from Pexels
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