My website is not showing html code from paypal

[jakubrezina]

Hello,

I would like to add a payment button to my wordpress website hosted on my own .com domain. I get a code from https://www.paypal.com/buttons/smart?flowloggingId=8a47de0f82d54 and it generates HTML code for me so I can insert it into my WordPress page.

Now, I create a new post or page => I switch from visual to TEXT, and I insert that HTML code here:

This is how it looks (no buttons, only this menu):

This is how ti should look like if I insert that HTML code to https://codebeautify.org/htmlviewer:

Thank you so much! 

[jakubrezina]

Please, can someone help me? Thank you so much.

This is how it should look like: