HTML structures the content of a webpage, while CSS is used to style and arrange that content.
Semantic tags provide context, making it easier to understand the role of the content and improve code readability. Divs however are generic containers.
Browsers have default styles for certain HTML elements (such as headers), This allows for h3 tags to be bolded and displayed in a larger font size without any additional CSS styling.
HTML is sent over the internet using HyperText Transfer Protocol (HTTP).
Staying organized, asking for help, taking care of yourself and setting goals can keep you motivated and help you build a successful future.