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