JSFiddle - React, Tailwind, and code Playground

HTML

<ol>
    <li>cdashjkfhkdvfsdfjkvnjk cnzxjkvnkncjkvjkxcvbkcbvk </li>
    <li>cdashjkfhkdvfsdfjkvnjk cnzxjkvnkncjkvjkxcvbkcbvk </li>
</ol>
<ol>
    <li>cdashjkfhkdvfsdfjkvnjk cnzxjkvnkncjkvjkxcvbkcbvk </li>
    <li>cdashjkfhkdvfsdfjkvnjk cnzxjkvnkncjkvjkxcvbkcbvk </li>
</ol>

CSS

body {
    counter-reset:section;
}
ol {
    counter-increment:section;
    counter-reset:subsection;
}
li:before {
    counter-increment:subsection;
    content:counter(section) "." counter(subsection) " ";
}