The Box Model - margin, border, padding, content Styling Width & Height - px or % (or other units) - % refers to container - width and height - box-sizing can be content-box(default) or border-box Pseudo Classes & Elements :hover :active :first-of-type ::after ::first-letter The "display" Property - control behavior(block vs inline) of elements - Mix behavior via inline-block - Remove elements v..
