HTML/CSS
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BitDegree: https://www.bitdegree.org/learn/html-basics
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BitDegree: https://www.bitdegree.org/learn/css
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Codecademy: www.codecademy.com/catalog/language/html-css
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Codeconquest: https://www.codeconquest.com/tutorials/html/
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Codequest: https://www.codeconquest.com/tutorials/css/
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FreeCodeCamp (HTML tutorial-How to make a super simple website): https://www.youtube.com/watch?v=PlxWf493en4
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GeeksforGreeks: https://www.geeksforgeeks.org/html-tutorials/
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GeeksforGeeks: https://www.geeksforgeeks.org/css-tutorials/
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HTML/CSS Slides: https://docs.google.com/presentation/d/1w7Z2iHWdOPB3Nkk6ejH8SRTLpWdEBBVMbgKflL9FWw0/edit?usp=sharing
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Tutorialspoint: https://www.tutorialspoint.com/css/index.htm
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Tutorialspoint: https://www.tutorialspoint.com/html/index.htm
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w3schools.com: https://www.w3schools.com/css/
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Repl.it (Code, create, and learn together-compiler): https://repl.it/