Element block pseudo-class :active generated with box-shadow transform z-index auto overflow hidden margin 0px background border 1px rgba(0,0,0,1) solid width 160px border-radius float left text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-sizing border-box cursor default transition position relative font-weight normal height auto line-height 1 font-size 16px padding 20px display block