I previously revamped the website in question. This particular design can be achieved without the need for JavaScript, primarily utilizing clever position:sticky;
div elements.
To illustrate, here is a quick image showcasing how to implement this:
https://i.sstatic.net/8Lkvx.png
For further clarification, you will require <section>
elements with their heights set to 100vh (for responsiveness). Within these sections, you can employ either flexbox or grid. The structure will resemble the following:
<section style="height:100vh; position:sticky; top:0;">
<div class="left-big-box" style="display:flex; flex-direction:column;">
<div class="top_of_left-big-box">
<h2 style="margin-top: x; (x = i*30px where i is the index of the element starting from 0 for the first element)">Title to overlap</h2>
</div>
<div class="bot_of_left-big-box" style="background:black; (to hide overlapped text)">
<p>• asdasd<br> • asdasd <br> • asdasd</p>
</div>
</div>
<div class="right-img-box">
<img>
</div>
</section>
Live Example (Non-Responsive / view as "full page")
html,body {margin:0;padding:0;}
#uv_home_services {background: linear-gradient(90deg, #000 50%, #252525 50%);position: relative;top: 0;z-index: 1;}
.service-card {display: grid;grid-template-columns: 1fr 1fr;height: 100vh;position: sticky;top: 0;}
.service-card .info {display: grid;grid-template-rows: 3fr 2fr;text-align: right;padding: 0 2.5rem;}
.service-card .info h3 {color: #fff;font-size: 3rem;margin:4rem 0 0;}
.service-card:nth-child(2) .info h3 {margin:8rem 0 0;}
.service-card:nth-child(3) .info h3 {margin:12rem 0 0;}
.service-card:nth-child(4) .info h3 {margin:16rem 0 0;}
.service-card:nth-child(5) .info h3 {margin:20rem 0 0;}
.service-card:nth-child(6) .info h3 {margin:24rem 0 0;}
.service-card .info .text {max-width: 500px;width: 100%;justify-self: end;display: grid;height: 100%;color: #fff;align-content: end;background: linear-gradient(0deg, #000 50%, #0000);}
.service-card .info .text p {font-size: 1.5rem;margin-bottom: 4rem;}
#uv_home_services .service-card .photo {background-size: cover;}
.service-card:nth-child(1) .photo, .service-card:nth-child(2) .photo,
.service-card:nth-child(3) .photo, .service-card:nth-child(4) .photo,
.service-card:nth-child(5) .photo, .service-card:nth-child(6) .photo {background: url('https://via.placeholder.com/150x150');}
<section id="uv_home_services">
<div class="container vertical-bar">
<div class="service-card">
<div class="info">
<h3>Branding & Design</h3>
<div class="text">
<p>
LOGO DESIGN<br> PACKAGE DESIGN<br> COMPANY PROFILE<br> AD & BANNER DESIGN
</p>
</div>
</div>
<div class="photo"></div>
</div>
<div class="service-card">
<div class="info">
<h3>Web Design</h3>
<div class="text">
<p>
HOSTING PLANS<br> CUSTOM DESIGNS<br> STATIC OR WORDPRESS<br> CORPORATE AND E-SHOPS
</p>
</div>
</div>
<div class="photo"></div>
</div>
<div class="service-card">
<div class="info">
<h3>Social media + SEO</h3>
<div class="text">
<p>
GOOGLE ADWORDS<br> GOOGLE ANALYTICS<br> WEBSITE OPTIMIZATION<br> SOCIAL MEDIA MANAGEMENT
</p>
</div>
</div>
<div class="photo"></div>
</div>
<div class="service-card">
<div class="info">
<h3>Printing</h3>
<div class="text">
<p>
SPECIAL FEATURES>br> TINY OR HUGE SIZE<br> CORPORATE OR PERSONAL<br> MATERIAL OF YOUR CHOICE
</p>
</div>
</div>
<div class="photo"></div>
</div>
<div class="service-card">
<div class="info">
<h3>Photoshooting & Studio</h3>
<div class="text">
<p>
PROFESSIONAL PRODUCT SHOOTING<br> CATALOGUE AND WEBSITE GALLERY<br> WORKPLACE & INDUSTRY SHOOTING<br> SHOOTING FOR SOCIAL MEDIA
</p>
</div>
</div>
<div class="photo"></div>
</div>
<div class="service-card">
<div class="info">
<h3>Aerial Photography & Video</h3>
<div class="text">
<p id="start-team">
AERIAL PHOTOSHOOTING<br> AERIAL VIDEO PRODUCTION<br> HIGH-END DRONE FEATURES
</p>
</div>
</div>
<div class="photo"></div>
</div>
</div>
</section>