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