I'm currently doing some modifications on a website where I created a banner that has a button to open a "mailto:" link, and I managed to customize it so when it opens the mail client window, it already has the desired info on recipient, subject and body fields.

It's a Wordpress site, built with Elementor and I used the Royal Elementor Addons plugin to create a popup banner, but when I added the "mailto:" link, none of the HTML tags I tried to use worked (I wanted to add paragraphs, bold and underlines). After reasearching a bit further I found out that there are specific tags for these type of links and I managed to add the paragraphs on the mail body, like this (without having to use "<a href>" and similar tags):

mailto:[email protected]?subject="Novo Cliente JCR iTech"&body="Dados para Inscrição%0A%0ANome:%0ATelefone:%0ATipo de serviço/compra:%0A%0A"

But I'm having a hard time in discovering how to add bold or underline on the body text (if it's even possible). I read this article but it seems that the extra work doesn't deserve the effort (I want to keep it simple), but still I just want to ask if anyone knows a simpler method to achieve this.

Thanks in advance.