mj-title Defines the document's title that browsers show in the title bar or a page's tab. <mjml> <mj-head> <mj-title>Hello MJML</mj-title> </mj-head> <mj-body> <mj-section> <mj-column> <mj-text> Hello World! </mj-text> </mj-column> </mj-section> </mj-body> </mjml>