Regex #
- Regular expression syntax cheatsheet (mdn)
- regexp cheatsheet (devhints)
CSS #
- CSS, CSS tricks and CSS system fonts (devhints)
- A free visual guide to CSS (cssreference.io)
- CSS Tutorial (w3schools)
- Alpha codes for hexadecimal color values - apply transparency to hex color codes
- SCSS Cheatsheet - useful functions & mixins