Step 2 - Add the Call-To-Action
Now tell your subscribers the exact action that they'll be performing by tapping the button. Use simple, direct words such as Try, Start, Get, View, Read, Download.
Step 3 - Select a font your CTA button
Next, select the font of the button. It is recommended to use a common font throughout the entire newsletter.
Step 4 - Size your CTA button properly
Make sure your button is easy to tap. You can accomplish that by selecting a proper font size and adjusting the horizontal and vertical padding of the button: