This webapp is as simple as it is basic. It doesn't accept additional files like images or changes to the font color, for example.
The tool functions simply as a text page where you can include a title and body text that can be aligned however you want.
The content gets saved to the browser as you're typing your text. Also, if being in front of the white screen for a long time is uncomfortable for you, you can change the contrast so you don't damage your vision.
Escriba is a really useful tool for those moments when you need to compose and print a document but don't have time to install a text editor onto your computer. It'll help you out time and again.