<span> tags are used for inline elements that can be introduced into a page without causing line breaks, while <div> tags are used for block-level elements that add line breaks. CSS pseudo-classes like :link, :visited, :hover, and :active can be used to style unvisited, visited, hovered over, and active links. Margins and paddings are properties that control the space around elements.

1. Class 8

2. Span Tagsblock-level elements (e.g. h1, p) add line breaks around themselves, while inline elements (like em, strong) can be introduced into a page without causing too much disruption.<div> is used for block-level elements<span> is used for inline level elements

3. Pseudo Selectora:link {color:#FF0000;} /* unvisited link */a:visited {color:#00FF00;} /* visited link */a:hover {color:#FF00FF;} /* mouse over link */a:active {color:#0000FF;} /* selected link */

4. Margins and Paddings