Element block pseudo-class :active generated with display block height auto margin 0px float none box-sizing content-box cursor default z-index auto border 0px rgba(0,0,0,1) solid font-size 16px line-height 1 border-radius font-weight normal width 160px padding 20px transform box-shadow 1px 1px 1px rgba(0,0,0,0.3) position static overflow hidden transition text-shadow 1px 1px 1px rgba(0,0,0,0.2) background