absolute top-0 mt-1 w-3 h-3 rounded-full bg-blue-500 code example

Example 1: tawind cdn

<link href="https://unpkg.com/tailwindcss@^2/dist/tailwind.min.css" rel="stylesheet">

Example 2: tailwind css

<link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet">