【CSS】Intermediate6:Display
1display :inline/block/none
2.inline value
Cause all list items in a list to appear next to each other in one continuous line
rather than each one having its own line.
3.Block
Make a box standalone,fitting the entire width of its containing box,with an effectve line break before and after it.
4.inline-block(行内块)
keep a box inline but lend the greater formatting flexibility of block boxes,allowing margin to the right and left of the box.
5.none
doesn't display a box at all.Take the element'x box completely out of play.
visibility:hidden——Keep the box and its flow in place
6.Table
table-row=tr
talbe-cell=td
talbe-column
table-clolumn-group
talbe-row-group
table-header-group
table-footer-group
table-caption
7.inline-table
set the table without line breaks before and after it
8.list-item
nested in ul/ol
9.run-in
depend on the display of its parent