I hate to even ask something that seems so dumb but I just dont get this. All I want to do is have a blue div at the top of my window that stretches across the entire window. I thought width:100%;
How to use chrome web inspector to view hover code - Stack Overflow
css - Div 100% width without margin - SharePoint Stack Exchange
css - Resizable DIV inside DIV 100% height with margin around not working well! Some help please? - Stack Overflow
Fix iframe/embedded video size relative to screen size? - Coding - PsychoPy
How to make div fill full height of parent in Tailwind CSS ? - GeeksforGeeks
How to remove line breaks
overflow CSS-Tricks - CSS-Tricks
How to create a stack visualizer using HTML CSS & Javascript ? - GeeksforGeeks
How to make div width expand with its content using CSS ? - GeeksforGeeks
How do I make an element stretch 100% width of the screen in a predefined theme?
overflow - CSS: Cascading Style Sheets
What is the best way to remove all margins from an HTML page? - Quora