Q: What is the CSS box model?
The CSS box model is the way to think about each element as having several blocks around them: Margin, Border, Padding, and then the content.<,p>

Q: Explain this CSS property: padding:25px 50px;
"padding: 25px 50px;" will move the content 25 pixels from the top and bottom of the element and 50 pixels from the right and left sides. Like this.

Q:How is an HTML element height and width determined?
All elements have inherent height and width, but they can be changed through CSS with the height and width attributes.

Q:What is the difference between a border and an outline?
A border is a portion of the box model and effects the shape of an element and can effect the contents. An outline is similar to a border, but doesn't effects the shape of the element or the content.

Q:What is the difference between margin and padding?
A margin is the distance between 2 elements.
Padding is the space between the content of an element and the border.