HTML

• The head element contains information about the webpage.
• The head elements have the following metadata tags: title, style, base, link, meta, script.
• The body element represents the visible content shown to the user.
• The body elements can have associated tags so browser understands how to treat the content. Example includes: p to represent paragraph, ul represent unordered lists, ol represents ordered lists, li represents list items.

CSS

• Cascading Style Sheets (CSS), which is a programming language used by developers to define how webpage content is presented to users
• An entire stylesheet can be embedded directly in the HTML file using a style element in the head element.
• A margin indicates how much space we want around the outside of an element.
• A padding indicates how much space we want around the content inside an element.

Git

• git clone: clones github repository locally
• git add -A: stages the changes
• git commit -m "description": commits changes to repository
• git status: checks what branch we are currently on
• git checkout -b branch-name: creates a new branch and switches to it
• git push origin feature/[branch name]: pushes all of our changes

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.
• Use conditional statements and loops to control the order in which code is executed, or if it is even executed at all.
• An if statement is a way of introducing decision-making into our code.
• When evaluating a dozen or even hundreds of variables at a time, JavaScript provides an array.