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