I would like to introduce a new online tool to create a carets for your website: Caret provides you a very simple configuration to create your triangles, including the width, border width, background color and direction.
Carets are very popular in dropdown lists. They replace select elements.
This tool provides a very simple way to add one in your website.
You can configure the width, border width, background color and direction.
Feel free to fork the repo or create an issue in Github.