Element block pseudo-class :active generated with height auto position static padding 5px font-size 16px font-weight normal box-sizing content-box border-radius border 1px rgba(0,0,0,1) solid display block margin 0px transition line-height 1 width 30px float none opacity 0.55 z-index auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) cursor default transform background overflow hidden box-shadow 1px 1px 1px rgba(0,0,0,0.3)