4 HTML, CSS und Co.

Bootstrap 4

• Startseite: https://v4-alpha.getbootstrap.com/
• Komponenten: https://v4-alpha.getbootstrap.com/components/alerts/

Google Fonts

• Google Fonts API: https://developers.google.com/fonts/docs/getting_started
• Google Fonts: https://fonts.google.com/

HTML Farben

• HTML Color Names: https://www.w3schools.com/colors/colors_names.asp
• HTML Color Codes: https://html-color-codes.info/
• HTML Color Picker: https://www.w3schools.com/colors/colors_picker.asp

ICO converter
https://www.icoconverter.com/