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