Change subheading text size only in specific section

[btwu10]

Hello everyone. Trying to find a way to reduce the text size of this subheading but only in this section. The section type is 'testimonials'. Please see the picture below - the subheading I am referring to is highlighted. 

[Moeed]

Hey @btwu10 

Welcome to Shopify Community! Can you share your Store URL so I can have a look on it? Also, if you have password enabled then please share the password as well. Your cooperation would be greatly appreciated.

Best Regards,
Moeed

[btwu10]

My store URL is https://solarisextracts.com/. The store is active and there is no password. Thanks for looking into it, Moeed.

[Moeed]

Hey @btwu10 

Follow these Steps:

1) Go to Online Store
2) Edit Code
3) Find theme.liquid file

4) Add the following code in the bottom of the file above </body> tag

<style>
section-header.section-header span {
    font-size: 25px !important;
}
</style>

RESULT:

If I managed to help you then, don't forget to Like it and Mark it as Solution!

Best Regards,
Moeed

[btwu10]

Hi Moeed. I added the code as suggested and it is only reducing the size of the main header "Customer Reviews" instead of the subheader. Does the code need to be slightly changed to work on the subheader?

[Made4uo-Ribe]

Hi @btwu10 

Try this one. 

1. From your Shopify admin dashboard, click on "Online Store" and then "Themes".
2. Find the theme that you want to edit and click on "Actions" and then "Edit code".
3. In the "Assets" folder, click on "base.css, style.css or theme.css" file, depending on which file your theme uses to store its CSS styles. At the bottom of the file, add the following CSS code:

.shopify-section.shopify-section--testimonials p.bold {
    font-size: .8rem;
}

• And Save.
• Result:
  

  The default size is 1rem. 

 Your Feedback Matters! Please mark the solution and give likes to posts that helped you. Your appreciation fuels our motivation to assist you better! 

[btwu10]

Thought this was the working solution but unfortunately the heading of each testimonial card is now also reduced in size as seen in the highlighted text below "Corey K | Verified Customer". Hoping to keep those headings the larger size.

[Made4uo-Ribe · Accepted solution]

Oh, I didnt notice. Replace with this code then. Same Instruction. 

.shopify-section.shopify-section--testimonials .prose p {
    font-size: .8rem;
}

And SAve.

Result:

 Your Feedback Matters! Please mark the solution and give likes to posts that helped you. Your appreciation fuels our motivation to assist you better! 

[btwu10]

Sorry for the switch around again. I just looked closer and the size of the main header (highlighted) is now reduced along with the subheader. Is there a way to keep everything else in the section the same text size and only reduce the subheader "Let customers speak for us"?

[Made4uo-Ribe]

Sorry, I didn't touch the header. Are you sure you only added the code I gave, or did you add another code? You clearly stated in your post only the subheading not the header. 

 Your Feedback Matters! Please mark the solution and give likes to posts that helped you. Your appreciation fuels our motivation to assist you better! 

[btwu10]

Oh wow, you were right. I forgot to remove the other code that was suggested. Thank you so much. Extra props for being so detail oriented!