How can i make a <button> that makes a draft in gmail?

Question

i want to make a button that send an email when you click it

Example:
you press the button

it opens the gmail app and makes a draft:
to: [e-mail]
subject: text you can define
Compose email: text you can define

Answer 1

Look up the mailto: option for html links. The other option is to look up google's api or urls for the page requests that occur when you click the new message button in gmail.