Solid Underline Newsletter Block
Look Demo
Add a simple underline style to the newsletter block. This plugin uses css editor and works with all template families.
How To Install
From your Squarespace account, go to the Custom CSS Editor. Copy and paste the code below into the Custom CSS Editor box.
Customize
Change the border bottom color value to the color you’d like to replace it with and adjust the border bottom px value for more or less line thickness.