Oxygen Performance Fix: Reduce CLS With Image Dimensions

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High CLS can hurt Core Web Vitals, damage user experience, and make an otherwise fast website feel unstable. In this video, we show you how to fix high CLS in Oxygen with one simple image tweak: adding fixed width and height attributes so the browser can reserve space before images fully load.

This is one of the easiest ways to reduce cumulative layout shift in Oxygen and improve layout stability without changing your design. You’ll learn how to check your current CLS score, find the correct rendered image dimensions, add width and height attributes, and use eager or lazy loading attribute. We then retest the site to see the improvement.

Whether you are optimizing an existing Oxygen site or trying to improve Core Web Vitals before launch, this quick Oxygen performance tutorial will help you fix CLS fast.

=== Chapters ===

00:00 Introduction
00:10 Check current CLS score
00:18 What CLS means in Core Web Vitals
00:40 Find rendered image width and height
01:08 Add width & height attributes in Oxygen
03:00 Copy & paste image attributes faster
04:20 Retest CLS score after the fix

=== Frequently Asked Questions ===

Q: What is CLS in web performance?
A: CLS stands for Cumulative Layout Shift. It measures how much visible content moves around while a page loads. A high CLS score usually means your layout is unstable.

Q: Why do images cause high CLS?
A: Images often cause layout shift when width and height are not defined. Without those dimensions, the browser does not know how much space to reserve before the image loads.

Q: How do I fix high CLS in Oxygen?
A: One of the simplest ways to fix high CLS in Oxygen is to add image width and height attributes. That gives the browser the correct aspect ratio and helps prevent layout shift.

Q: Does adding width and height attributes stretch images?
A: No. The browser uses the attributes to calculate layout space. Your CSS can still control the final responsive display.

Q: Will fixing CLS improve Core Web Vitals?
A: Yes. Reducing layout shift can improve your CLS metric, which is one of Google’s Core Web Vitals signals.

=== Related Resources ===

Learn more about Oxygen: https://oxygenbuilder.com/
Oxygen documentation: https://oxygenbuilder.com/documentation/
Extensions for Oxygen: https://oxygenbuilder.com/marketplace/extensions/
Watch more Oxygen videos: https://www.youtube.com/@OxygenBuilder

Видео Oxygen Performance Fix: Reduce CLS With Image Dimensions канала Oxygen