The Tip of the Iceberg

Question

I have completed the HTML and CSS portions of learning on here, but it feels like both of them only covered the tip of the iceberg and there is so much else to learn on top of the fundamentals that are taught here on SOLOLEARN.
So ... I have been looking around online for other sites that are good to reference when attempting to expand my skills and hopefully retain the knowledge that I have learned. So far I have W3Schools, LissaExplains, FunkyChickens and while I know those last two are aimed at kids

Answer 1

dont know of funny chicken's but w3school is perfect and standard.The iceberg itself is only the tip of another massive iceberg,learning is infinite

Answer 2

I use w3schools as well as the Khan Academy Computer Programming Course.
Here are is the link for KACP.
https://www.khanacademy.org