Add Button Any where

 

for the green with style 👇 copy and paste it at where u want in the HTML edtor

 <button class="btn-primary" style="background-color: #4CAF50; color: white; font-size: 16px;" onclick="alert('Hello, world!')">Click me</button>

for white👇paste the downlink to your html editor 

<button>Click me</button>

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