JSFiddle - React, Tailwind, and code Playground

HTML

<form action="http://jsfiddle.net/">
<input type="text" placeholder="This is required" required />
<input type="text" placeholder="This isn't required" />
<input type="text" placeholder="This is required" required />
<input type="text" placeholder="This isn't required" />
<input type="submit" value="Press Me without filling in any of the fields">
</form>

CSS

input {
display: block;
margin: 6px;
}