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