You can easily customize the background color of your SmartSize popup by adding a short snippet of CSS to your Shopify theme.
Step 1
In your Shopify admin, go to Online Store → Themes → Customize.
Open the Theme settings → Custom CSS section.
Step 2
Paste the following code snippet:
.smartsize-modal {
background-color: #F7F4F0 !important;
}
Replace #F7F4F0
with any color you prefer (for example, #ffffff
for white or #CBBBA8
for light beige).
Save your changes and preview your store to see the updated background color.
Pro Tip:
For additional customization options—like changing colors, sizes, or spacing—visit our SmartSize CSS Styling Chatbot for step-by-step guidance.