How to change size of a subject?

[stinem123]

Hi everyone, how do i change the size of this trust bar title? And how do I know where to find the section in liquid code, so I can change size or maybe even the text, just curious, cant really figure it out? 

Link for my website: https://www.melchiorjewelry.com/collections/alle-ringe/products/amor-heart-ring

Thank you so much, hope someone can help me out here!

I want it to look like this below (from 18px to 14px):

.

.

.

.

.

.

.

.

@GemPages_Agents 

@KetanKumar 

@hammadCodes 

@PaulNewton 

@Ninthony 

@dmwwebartisan 

@ExpertRookie 

@MandasaTech 

@GemPages 

@Mike-Omega 

@PageFly-Richard 

@tobebuilds 

@BSSCommerce-B2B 

@BSS-TekLabs 

@Moeed 

[Mehran_Ali]

Hi @stinem123 

I can help you if you need if you can share the collaboration access I can find it and let you know the steps to resolve everything 
because I can not assist you blindly regarding the customizer

[DaisyVo]

Hi @stinem123 

To complete your requests, please follow these steps:

1. Go to Shopify Admin > Online Store > Theme > Customize > Theme Settings > Custom CSS https://prnt.sc/i8ljAMlHJUKl
2. Paste the code provided into the Custom CSS section.

.trustBarTitle {
    font-size: 14px !important;
}

I hope this helps

Best,

Daisy