JSFiddle - React, Tailwind, and code Playground

HTML

<div class='banner_area'>
    <div class="banner_inner">
            <p class='introText'> You deserve it. </p>
            <a href="menu.html" style="text-decoration : none">
                <div class='subIntroButton'> check treats </div>
            </a>
    </div>
    
</div>

CSS

.banner_area .banner_inner {
    opacity: 0.5;
    position: relative;
    overflow: hidden;
    width: 100%;
    min-height: 395px;
    background-image: url('https://cdn.pixabay.com/photo/2018/02/08/22/27/flower-3140492__480.jpg');
    background-repeat: no-repeat;
  background-attachment: bottom;
  background-position: center;
    z-index: 1;
    }