HTML

• The head element contains information about the webpage.
• The different kinds of elements contained in the head element are:
  1. meta tag used to provide information like the character set, viewport
  2. link tag used to link different files like stylesheets required for the webpage
  3. title tag used for giving a title to the webpage describing its contents
• The body element represents the visible content shown to the user.

CSS

• A margin indicates how much space we want outside of an element.
• A padding indicates how much space we want around the content inside an element.
• A period before the class name is used to indicate it is a class selector.
• External stylesheets are linked to the HTML using the 'link' tag in the head element.

Git

• git status: Checks which branch we are currently on.
• git checkout -b branch-name: creates a new branch and switches to it.
• git add -A: stages all the changes.
• git commit -m "message": commits the staged changes. It is advisable to add different commits to each change.
• git pull origin main: to check if local branch is in sync with the main branch.
• git push origin branch-name: pushes all the commited changes to the feature branch into the GitHub repo.

JavaScript

• A variable is a named container that allows us to store data in our code.
• Control flow is the order in which a computer executes code in a script.
• Conditional logic (like for loops and if statements) are used to alter the flow of code execution depending on certain conditions.
• Functions are a set of instructions that tells the computer how to perform a certain task.
• Functions are useful when some parts of code need to be reused.
• To execute the set of instructions inside a function it has to be called with the corresponding function name.