Shopify Guides

How to Change Font Size in Shopify Product Description: A Comprehensive Guide

September 25, 2025
How to Change Font Size in Shopify Product Description: A Comprehensive Guide

Table of Contents

  1. Introduction
  2. Understanding Shopify Theme Customization
  3. Basic Font Size Adjustments
  4. When Basic Adjustments Aren't Enough
  5. Dive into CSS for Advanced Customization
  6. Tips for Successful Customization
  7. Conclusion
  8. FAQ

Introduction

Have you ever hesitated to make a purchase simply because the product description was challenging to read? You're not alone; readability is fundamental in eCommerce. From font choices to sizes, the typography of your Shopify product descriptions can greatly influence a customer's shopping experience. Getting it right not only elevates the aesthetics of your online store but also serves to enhance customer satisfaction—thereby driving sales.

At ShipAid, we believe that every aspect of your eCommerce business matters, down to the font size in your Shopify product descriptions. Our focus is on empowering ecommerce merchants like you to optimize every touchpoint with your customers, transforming potential hurdles into opportunities for trust and loyalty.

In this detailed guide, we'll walk you through the steps on how to change font size in Shopify product description—from basic adjustments using the theme editor to more advanced customization through CSS coding. We will cover everything you need, ensuring you can create a visually appealing and user-friendly shopping environment that can ultimately lead to higher conversion rates.

By the end of this post, you'll have a thorough understanding of the various ways you can customize font sizes in your Shopify store. Whether you're a seasoned merchant or just starting, the following sections will inspire you to take your Shopify store's typography to the next level.

Understanding Shopify Theme Customization

Shopify offers a variety of templates and themes that allow merchants to create online stores that reflect their brand identity. Each theme includes pre-defined typography settings and styles, giving you the freedom to adjust how your store looks. However, sometimes you may find yourself needing more specific adjustments—such as changing font sizes on product descriptions—than what the theme settings provide.

Basic Customization Options

To begin your journey toward optimal typography, let’s explore the basic customization options that Shopify provides:

  1. Navigate to Online Store: Head to the Shopify admin panel and click on the 'Online Store' option in the left sidebar.
  2. Select Current Theme: Click on 'Themes', and locate the theme currently applied to your store.
  3. Access Customization Settings: Click on the 'Customize' button next to your active theme. Look for typography settings that allow you to adjust font sizes for various elements, including product descriptions.

This simple process will often suffice for merchants who want to make broad changes to font sizes across their store. However, if the settings do not allow for precise adjustments, let’s kick it up a notch and dive into more advanced customization.

Basic Font Size Adjustments

Most Shopify themes provide a default way to edit font sizes through the theme editor. However, here’s a reminder: these changes generally apply site-wide or in certain sections only. If you want specific control over the product description text, adjustments through CSS may be required.

Let's outline how to change your product description’s font size using the Shopify admin:

  1. Log into Your Shopify Admin: Access your online store dashboard.
  2. Online Store > Themes > Customize: Navigate to the theme you wish to edit.
  3. Select Typography: Click on the 'Typography' section or a similar setting, depending on your theme.
  4. Adjust Font Size: Use the interface to modify the font size as desired. Note that changes may affect all text elements if the theme’s settings apply globally.

While these steps can accomplish many typical adjustments, more intricate modifications will necessitate some hands-on coding.

When Basic Adjustments Aren't Enough

Should you find that the default settings get in the way of achieving your specific vision, it’s time to step into the code. The good news is you don’t need to be a coding expert to implement these changes. Follow these steps to access the code and make more tailored adjustments.

Accessing Your Theme Code

  1. Navigate to Online Store: On your Shopify admin panel, click on 'Online Store', then 'Themes'.
  2. Edit Code: Click 'Actions' next to your current theme and select 'Edit Code'.
  3. Locate the CSS File: In the 'Assets' directory, look for a file named theme.scss.liquid, style.css, or base.css—the naming may vary based on your theme.

With direct access to your CSS, you're poised for more nuanced changes.

Dive into CSS for Advanced Customization

Customizing your product description font size via CSS grants you significant power and flexibility to differentiate various text portions without needing a developer. Here are some CSS snippets that will assist in tailoring your font sizes.

Code Snippets for Font Size Adjustment

To set a uniform size for all product descriptions, insert the following code into your CSS file, replacing 18px with your desired font size:

.product-single__description {
  font-size: 18px !important;
}

This targets all descriptions and ensures that they adhere to the specified size.

Customizing Specific Sections

If you want to highlight or emphasize specific parts of your product description—as in making the last paragraph larger than the rest—consider using the following code snippet:

.product-single__description p:last-child {
  font-size: 20px !important;
}

This code specifically targets the last paragraph within the product description and allows for segmentation within your content.

Responsive Design with Media Queries

In today's mobile-first world, ensuring your font size looks great on all devices is critical. Use media queries to adjust font sizes based on the screen size:

@media screen and (max-width: 768px) {
  .product-single__description {
    font-size: 14px !important;
  }
}

This code will make your product description font respond dynamically to smaller screen sizes, establishing a consistent and readable experience.

Tips for Successful Customization

Customizing typography can be a rewarding endeavor, but it comes with responsibilities. Here are a few pointers to ensure a smooth experience:

  • Backup First: Always make a backup of your theme before making any changes. This acts as a safety net, enabling you to revert to the previous version if anything goes awry.
  • Test Changes: Ensure that you check your adjustments on both desktop and mobile platforms. This guarantees that your text is legible across devices.
  • Maintain Brand Consistency: Your font changes should align with your brand's overall aesthetic. Keep it professional and cohesive to sustain your brand identity.
  • Monitor Performance: While changing fonts generally won't impact load times, adding too many custom fonts can lead to slower site performance. Limit them when possible.

By adhering to these tips, you'll make the most of your typography adjustments, setting the stage for a better customer experience.

Conclusion

Changing the font size in Shopify product descriptions is more than just a minor tweak; it reflects your brand identity and improves overall user experience, which is directly related to sales performance. Whether you're making basic edits through the Shopify editor or diving into CSS for more granular control, we hope this guide empowers you to optimize your online store for a more engaging customer journey.

Design decisions play a crucial role in building trust with your audience. At ShipAid, we encourage every merchant to refine their customer experience, including aspects like typography.

Now that you have the tools and methods to change font sizes in Shopify product descriptions, why not give it a try? Explore your theme's customization options and begin to create a shopping environment that not only looks good but reads well too.

FAQ

Q: Will changing the font size impact my store's loading speed?
A: The simple act of adjusting font size doesn’t typically affect loading speeds. However, integrating multiple custom fonts or excessive code changes can impact performance. Aim for efficiency and simplicity.

Q: Can I use Shopify's theme editor to change font sizes?
A: Yes, many Shopify themes allow for direct adjustments through the theme editor’s typography settings, although options may be limited.

Q: Is it necessary to know how to code to change font sizes in Shopify?
A: Basic changes usually don't require coding knowledge, but for advanced customizations, familiarity with CSS is beneficial, though not mandatory.

Q: How can I revert changes if something goes wrong?
A: Always back up your theme beforehand. If needed, you can use the backup to restore or simply remove the specific code snippet added.

Q: Can I set different font sizes for different devices?
A: Yes, by employing CSS media queries, you can specify font sizes or styles based on the device’s screen size, allowing for a responsive design.

We hope these insights help optimize your Shopify product descriptions and enhance your eCommerce success! Don’t forget to visit our interactive demo to discover more ways we can help you enhance your shipping protection strategies for added conversion opportunities!


Participation is optional and ShipAid is not insurance. It does not provide indemnification for loss, damage, or liability. Instead, it allows brands to offer a free replacement if an item is not delivered or arrives in unsatisfactory condition. ShipAid does not sell or ship products, but provides tools for brands to manage replacements. All resolution decisions are made by the brand and may require proof of damage or non-delivery or other information

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