How to Fix Layout Shift Issues in Web Pages for Better UX

Introduction

If you have ever visited a website and tried to click a button, but suddenly the page moved and you clicked something else — that is called a layout shift. This is one of the most common problems in modern web development, especially in fast-growing digital markets like India (Noida, Ghaziabad, Delhi NCR, Bengaluru).

Layout shift directly impacts user experience (UX), website performance, and even Google search rankings, because it is a part of Core Web Vitals.

In this detailed guide, you will learn how to fix layout shift issues in web pages step by step, using simple language, real-life examples, and practical solutions.

What is Layout Shift in Web Development?

Layout shift happens when elements on a web page move unexpectedly while the page is loading.

In technical terms, it is measured as Cumulative Layout Shift (CLS) — one of Google’s Core Web Vitals metrics.

Simple Example

You open a news website
You try to click “Read More”
Suddenly an ad loads and pushes the button down

This is a layout shift.

Why Layout Shift is Bad for UX and SEO

Layout shift is not just annoying — it can seriously affect your website.

Impact on User Experience

Users click wrong buttons
Content becomes hard to read
Website feels unstable

Impact on SEO (Google Ranking)

Google considers CLS as a ranking factor.

High CLS → Lower rankings
Poor UX → Higher bounce rate

This is especially important for websites targeting Indian users and local search traffic.

Common Causes of Layout Shift

Understanding the root cause is the first step to fixing layout shift issues.

1. Images Without Dimensions

If you do not define width and height for images, the browser does not know how much space to reserve.

2. Ads and Embedded Content

Ads, iframes, or videos load later and push content down.

3. Fonts Loading Late (FOIT/FOUT)

Custom fonts may load after the text is displayed, causing shifts.

4. Dynamic Content Injection

Content added via JavaScript (like banners or popups) can move existing elements.

5. Buttons and Components Loading Late

Late-loading UI components can shift layout.

How to Fix Layout Shift Issues

Now let’s go through practical solutions used by frontend developers in real-world projects.

Step 1: Always Set Width and Height for Images

This is one of the easiest and most effective fixes.

Example:

<img src="image.jpg" width="300" height="200" />

Why it works

The browser reserves space before the image loads, preventing movement.

Real-world tip

Always define image dimensions in responsive websites for better UX.

Step 2: Use CSS Aspect Ratio

Modern CSS allows you to maintain layout using aspect ratio.

.image-container {
  aspect-ratio: 16 / 9;
}

Benefit

Even before content loads, space is reserved.

Step 3: Reserve Space for Ads and Embeds

Ads are a major cause of layout shift.

Solution

Use fixed-size containers
Reserve space before loading ads

Example:

<div style="width:300px; height:250px"></div>

This prevents sudden jumps.

Step 4: Avoid Inserting Content Above Existing Content

Adding content above existing elements causes everything to move down.

Better Approach

Add content below
Use overlays or modals instead

Step 5: Optimize Font Loading

Fonts can cause layout shifts when they load late.

Solution

Use:

font-display: swap;

Why it helps

Text appears immediately using fallback fonts, reducing shifts.

Step 6: Use Skeleton Screens or Placeholders

Instead of leaving blank space, show placeholders.

Example:

Grey boxes for images
Loading skeleton UI

Benefit

Users see stable layout while content loads.

Step 7: Avoid Animations That Change Layout

Animations that change size or position can cause layout shifts.

Use Instead

transform
opacity

These do not affect layout flow.

Step 8: Preload Important Resources

Load critical resources early.

Example:

<link rel="preload" href="font.woff2" as="font" type="font/woff2" crossorigin>

Benefit

Reduces delay and layout shifts.

Step 9: Test Using Google Tools

Use tools like:

Google PageSpeed Insights
Lighthouse

Check CLS score and fix issues accordingly.

Real-Life Example

Imagine an e-commerce website in India:

Before Fix:

Product images load late
Buy button shifts
User clicks wrong item

After Fix:

Images have fixed size
Layout stable
Better conversion rate

Before vs After Fixing Layout Shift

Before:

Unstable UI
Poor user experience
High bounce rate

After:

Stable design
Smooth interaction
Better SEO ranking

When Should You Focus on Layout Shift?

Always focus on layout shift when:

Building responsive websites
Creating e-commerce platforms
Developing mobile-first applications

Advantages of Fixing Layout Shift

Better user experience
Higher SEO rankings
Increased engagement
Improved trust

Disadvantages (If Ignored)

Poor UX
Lower rankings
User frustration

Common Mistakes to Avoid

Not defining image sizes
Ignoring ads impact
Loading fonts incorrectly
Adding dynamic content carelessly

Summary

Layout shift is a common issue in web development that negatively impacts user experience and SEO performance. By following best practices like setting image dimensions, reserving space for ads, optimizing font loading, and using placeholders, you can create stable and smooth web pages. Fixing layout shift not only improves usability but also boosts Google rankings, making it a critical step in modern frontend development.