You can easily set the default styling of your HTML to something Formant-y with a single line:
<link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/formantio/toolkit/css/formant.css" />
With this in your html head you will get default colors, appropriate fonts, and very basic elements will be styled.
The quick brown fox jumped over the lazy dog
The quick brown fox jumped over the lazy dog
The quick brown fox jumped over the lazy dog
The quick brown fox jumped over the lazy dog
The quick brown fox jumped over the lazy dog
All inputs: