<!--Hero area end-->
    <div class="hero_area">
        <svg class="waves" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 24 150 28" preserveAspectRatio="none" shape-rendering="auto">
            <defs>
                <path id="gentle-wave" d="M-160 44c30 0 58-18 88-18s 58 18 88 18 58-18 88-18 58 18 88 18 v44h-352z" />
            </defs>
            <g class="parallax">
                <use xlink:href="#gentle-wave" x="48" y="0" fill="rgba(255,255,255,0.7" />
                <use xlink:href="#gentle-wave" x="48" y="3" fill="rgba(255,255,255,0.5)" />
                <use xlink:href="#gentle-wave" x="48" y="5" fill="rgba(255,255,255,0.3)" />
                <use xlink:href="#gentle-wave" x="48" y="7" fill="#fff" />
            </g>
        </svg>
    </div>
    <!--Hero area end-->
/* Waves Animation start*/

.hero_area {
    position: relative;
    height: 100vh;
    background-color: black;
}

.waves {
    position: absolute;
    width: 100%;
    height: 15vh;
    min-height: 100px;
    max-height: 150px;
    bottom: 0;
    left: 0;
}

.parallax>use {
    animation: move-forever 25s cubic-bezier(.55, .5, .45, .5) infinite;
}

.parallax>use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 7s;
}

.parallax>use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 10s;
}

.parallax>use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 13s;
}

.parallax>use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 20s;
}

@keyframes move-forever {
    0% {
        transform: translate3d(-90px, 0, 0);
    }

    100% {
        transform: translate3d(85px, 0, 0);
    }
}


/*Shrinking for mobile*/

@media (max-width: 768px) {
    .waves {
        height: 40px;
        min-height: 40px;
    }
}

/* Waves Animation end*/

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.0.2/css/bootstrap.min.css

External JavaScript

This Pen doesn't use any external JavaScript resources.