css3垂直居中方式

display: -webkit-box; -webkit-box-orient: horizontal ; -webkit-box-pack: center; -webkit-box-align: center; display: -moz-box; -moz-box-orient: horizontal; -mo z-box-pack: center; -moz-box-align: center; display: -o-box; -o-box-orient: horizontal; -o-box-pack: center; -o-box-align: center; display: -ms-box; -ms-box-orient: horizontal; -ms-box-pack: center; -ms-box-align: center; display: box; box-orient: horizontal; box-pack: center; box-align: center;