Element block pseudo-class :active generated with display block padding 20px box-sizing content-box overflow hidden border 0px rgba(255,0,0,1) solid text-shadow 1px 1px 1px rgba(0,0,0,0.2) border-radius font-size 16px float none font-weight normal margin 0px height auto transition transform width 160px cursor default position static line-height 1 z-index auto background box-shadow