https://code.visualstudio.com/docs/editor/emmet#_using-custom-emmet-snippets
{
"html": {
"snippets": {
"!tw": "{<!DOCTYPE html>}+html[lang=${1}${lang}]>(head>meta[charset=${UTF-8}]+meta:vp+title{${2:Document}}+{}+script[src=${https://cdn.tailwindcss.com}])+body"
}
}
}