Add bookmarklet code

bookmarklet/original.js

@@ -0,0 +1,23 @@
+// Water.css Bookmarklet
+// ---------------------
+
+const $$ = (selector) => document.querySelectorAll(selector)
+const createElement = (tagName, properties) => Object.assign(document.createElement(tagName), properties)
+
+// Remove all CSS stylesheets, external and internal
+$$('link[rel="stylesheet"],style').forEach((el) => el.remove())
+
+// Remove all inline styles
+$$('*').forEach((el) => (el.style = ''))
+
+// Add water.css and responsive viewport (if necessary)
+document.head.append(
+  createElement('link', {
+    rel: 'stylesheet',
+    href: '//cdn.jsdelivr.net/npm/water.css@2/dist/water.css'
+  }),
+  !$$('meta[name="viewport"]').length && createElement('meta', {
+    name: 'viewport',
+    content: 'width=device-width,initial-scale=1.0'
+  })
+)