The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.
An online SVG arrow builder to make arrows for your designs. You can customize the arrowhead style, curves of the arrow and add some stylistic dashes.
Folge Hinweisen, löse Rätsel und entdecke verborgene und wunderbare Orte und ihre Geschichten.