mixin include()
  if block
        block

doctype html
html(lang="zh-CN")
  head
    block head
    title #{title || ''}
    meta(charset="utf-8")
    meta(name="viewport" content="width=device-width, initial-scale=1")
    script(src="https://unpkg.com/htmx.org@2.0.4")
  body
    block content
    block scripts