JSFiddle - React, Tailwind, and code Playground

by NOVUSIDEA

HTML

<link rel="stylesheet" href="https://unpkg.com/swiper/swiper-bundle.min.css">
<script src="https://unpkg.com/swiper/swiper-bundle.min.js"></script>
<div class="slider-wrap">
    <div class="swiper-container slider-main">
        <div class="swiper-wrapper">
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?0)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?1)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?2)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?3)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?4)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?5)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?6)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?7)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?8)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/600x400?9)"></div>
        </div>
        <div class="swiper-button-next swiper-button-white"></div>
        <div class="swiper-button-prev swiper-button-white"></div>
    </div>

    <div class="swiper-container slider-thumbs">
        <div class="swiper-wrapper">
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/300x200?0)"></div>
            <div class="swiper-slide" style="background-image:url(https://source.unsplash.com/random/300x200?1)"></div>
            <div class="swiper-slide"...

CSS

html,
body {
    position: relative;
    height: 100%;
}

body {
    background: #000;
    font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #000;
    margin: 0;
    padding: 0;
}

.swiper-container {
    width: 100%;
}

.swiper-slide {
    background-size: cover;
    background-position: center;
}

.slider-main {
    height: 300px;
}

.slider-thumbs {
    height: 100px;
    box-sizing: border-box;
    margin-bottom: 1rem;
}

.slider-thumbs .swiper-slide {
    width: 25%;
    height: 100%;
    opacity: 0.4;
}

.slider-thumbs .swiper-slide-thumb-active {
    box-shadow: inset 0 0 0 1px #fff;
    opacity: 1;
}

JavaScript

var sliders = document.querySelectorAll('.slider-wrap');

for( var s = 0; s < sliders.length; s++ ) {

    var slider          = sliders[s],
        sliderMainEl    = slider.querySelector('.slider-main'),
        sliderThumbsEl  = slider.querySelector('.slider-thumbs');

    var sliderThumbs = new Swiper(sliderThumbsEl, {
        slidesPerView: 4,
        watchSlidesVisibility: true,
        watchSlidesProgress: true,
    });

    var sliderMain = new Swiper(sliderMainEl, {
        navigation: {
            nextEl: '.swiper-button-next',
            prevEl: '.swiper-button-prev',
        },
        thumbs: {
            swiper: sliderThumbs
        }
    });

}