Element block pseudo-class :active generated with box-sizing content-box padding 50px margin auto transition line-height 1 float none text-shadow z-index auto box-shadow 5px 5px 8px rgba(0,0,0,0.25) transform border-radius font-size 16px position fixed font-weight normal overflow hidden border 2px rgba(180,180,180,1) solid display inline-block height 600px cursor default background width 450px