JSFiddle - React, Tailwind, and code Playground

HTML

<div class="hero">
    <div class="hero-bg" style="background-image: url(https://picsum.photos/800/400/?random)"></div>
    <div class="hero-content">
        <h1>Some text</h1>
    </div>
</div>

CSS

.hero {
    position: relative;
    padding: 3rem;
}

.hero-bg {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: none;
    opacity: .5;
    z-index: -1;
}

.hero::before {
    position: absolute;
    content: '';
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: green;
    z-index: -1;
}

.hero-content {
    color: white;
}