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