Userscript helpers

Some helper functions for userscripts, including:

• applyCss() - Applies a string of CSS to the document
• More to come...

applyCss()

Applies a string of CSS to the document

This function is intended to be a more robust alternative to GM_addStyle.

To use it in your userscript, add this line to the metadata block:

// @require https://rawgit.com/HatScripts/UserscriptHelpers/master/applyCss.min.js

And then call it like so:

applyCss('body { color: white; background-color: black; } img { border: 0; }');

Or with a multi-line string (ES6+):

applyCss(`
body {
  color: white;
  background-color: black;
}
img {
  border: 0;
}
`);