HTML: Hypertext Markup Language. It's used in conjunction with CSS (Cascading Style Sheets), which implements presentation (adding color, positioning elements, etc.) and JavaScript (you'll often see this referred to as JS), which implements functionality (like clicking on buttons) for webpages.
Answer:
Never heard of that lol
Wrong, You should get renters insurance to insure your items that you do have or will recieve in the future are safe