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